标签：int ans ++ 多校 牛客 2021 dx dy include
A.Alice and Bob
#include <iostream>
#include <cstring>
#include <set>
#include <vector>
#include <algorithm>
using namespace std;
#define pii pair<int, int>
#define mp(a, b) make_pair(a, b)
#define fr first
#define sc second
const int N = 5050;
int a[][2] = {{0, 0}, {2, 3}, {5, 7}, {9, 12}, {11, 15}, {14, 20}, {17, 22}, {19, 33}, {24, 32}, {26, 35}, {28, 58}, {29, 40}, {31, 38}, {37, 53}, {42, 52}, {44, 75}, {45, 60}, {47, 65}, {49, 70}, {50, 62}, {55, 68}, {57, 79}, {64, 87}, {67, 86}, {72, 92}, {74, 99}, {77, 101}, {81, 174}, {82, 118}, {83, 110}, {85, 113}, {89, 123}, {90, 116}, {94, 129}, {95, 127}, {97, 126}, {103, 136}, {105, 199}, {106, 146}, {108, 145}, {112, 166}, {115, 246}, {120, 161}, {122, 160}, {125, 164}, {131, 309}, {132, 182}, {133, 177}, {135, 198}, {138, 180}, {139, 156}, {141, 239}, {142, 190}, {143, 186}, {148, 203}, {149, 195}, {151, 340}, {152, 197}, {154, 232}, {158, 218}, {163, 229}, {168, 215}, {170, 286}, {171, 228}, {172, 224}, {176, 350}, {179, 298}, {184, 253}, {185, 236}, {188, 268}, {189, 259}, {192, 241}, {194, 256}, {201, 266}, {205, 281}, {207, 274}, {208, 264}, {210, 271}, {212, 322}, {213, 317}, {214, 278}, {217, 289}, {220, 327}, {221, 280}, {223, 315}, {226, 301}, {231, 332}, {234, 307}, {238, 372}, {243, 391}, {244, 325}, {245, 313}, {248, 306}, {250, 321}, {252, 305}, {255, 339}, {258, 565}, {261, 346}, {263, 359}, {270, 375}, {273, 521}, {276, 358}, {283, 370}, {285, 362}, {288, 379}, {291, 456}, {293, 367}, {295, 390}, {296, 386}, {300, 432}, {303, 415}, {311, 464}, {312, 411}, {319, 408}, {324, 501}, {329, 435}, {331, 702}, {334, 454}, {336, 545}, {337, 489}, {338, 449}, {342, 496}, {343, 446}, {345, 445}, {348, 558}, {349, 467}, {352, 461}, {354, 590}, {355, 577}, {356, 532}, {357, 479}, {361, 478}, {364, 494}, {366, 527}, {369, 520}, {374, 509}, {377, 505}, {381, 639}, {382, 553}, {384, 470}, {388, 485}, {393, 518}, {395, 474}, {397, 511}, {399, 487}, {400, 483}, {402, 588}, {404, 601}, {405, 531}, {407, 530}, {410, 568}, {413, 537}, {417, 586}, {419, 557}, {420, 541}, {421, 529}, {423, 525}, {425, 580}, {427, 560}, {429, 719}, {430, 624}, {431, 570}, {434, 549}, {437, 574}, {439, 603}, {440, 600}, {442, 683}, {443, 556}, {448, 614}, {451, 871}, {452, 651}, {453, 620}, {458, 772}, {459, 671}, {460, 596}, {463, 661}, {466, 666}, {469, 610}, {472, 761}, {473, 632}, {476, 760}, {477, 691}, {481, 660}, {491, 726}, {492, 635}, {498, 673}, {499, 646}, {503, 653}, {504, 649}, {507, 788}, {508, 648}, {513, 776}, {514, 716}, {515, 664}, {516, 658}, {523, 740}, {534, 893}, {535, 855}, {539, 752}, {540, 735}, {543, 723}, {547, 825}, {548, 800}, {551, 697}, {555, 711}, {562, 1202}, {563, 771}, {564, 693}, {567, 737}, {572, 744}, {576, 766}, {579, 780}, {582, 986}, {583, 768}, {585, 748}, {592, 877}, {593, 811}, {594, 805}, {595, 722}, {598, 1599}, {599, 828}, {605, 866}, {606, 845}, {607, 810}, {609, 849}, {612, 842}, {616, 831}, {617, 822}, {619, 787}, {622, 818}, {626, 799}, {628, 785}, {630, 836}, {634, 778}, {637, 879}, {641, 886}, {643, 899}, {644, 827}, {655, 1046}, {656, 918}, {657, 876}, {663, 870}, {668, 989}, {669, 929}, {675, 985}, {676, 857}, {678, 912}, {679, 904}, {680, 896}, {682, 1107}, {685, 869}, {687, 964}, {689, 920}, {695, 883}, {699, 946}, {700, 937}, {704, 948}, {706, 910}, {708, 957}, {710, 892}, {713, 996}, {714, 935}, {718, 969}, {721, 976}, {725, 1358}, {728, 1010}, {730, 917}, {732, 924}, {734, 1167}, {739, 1062}, {742, 1036}, {743, 1007}, {746, 1065}, {747, 1000}, {750, 982}, {751, 944}, {754, 1020}, {756, 1013}, {757, 995}, {759, 1854}, {763, 991}, {765, 1038}, {770, 1150}, {774, 1017}, {782, 1032}, {784, 1085}, {790, 1082}, {791, 1061}, {793, 1090}, {794, 956}, {796, 1029}, {797, 1023}, {802, 1777}, {803, 1072}, {807, 1081}, {808, 1079}, {813, 1118}, {814, 1117}, {815, 1110}, {816, 1040}, {820, 1131}, {824, 1070}, {830, 1098}, {833, 1053}, {835, 1122}, {838, 1201}, {839, 1165}, {841, 1322}, {844, 1241}, {847, 1225}, {848, 1120}, {851, 1190}, {852, 1106}, {853, 1076}, {859, 1145}, {861, 1206}, {862, 1180}, {863, 1130}, {864, 1055}, {868, 1156}, {873, 1384}, {874, 1212}, {875, 1102}, {881, 1194}, {882, 1175}, {885, 1164}, {888, 1192}, {890, 1186}, {895, 1285}, {898, 1227}, {901, 2018}, {902, 1211}, {906, 1208}, {908, 1261}, {909, 1231}, {914, 1245}, {915, 1214}, {922, 1394}, {923, 1269}, {926, 1363}, {927, 1243}, {931, 1274}, {933, 1307}, {939, 1405}, {940, 1268}, {942, 1381}, {943, 1219}, {950, 1265}, {952, 1314}, {954, 1254}, {959, 1311}, {960, 1297}, {962, 1420}, {963, 1295}, {966, 1390}, {967, 1279}, {971, 1337}, {972, 1302}, {973, 1248}, {975, 3859}, {978, 1284}, {980, 1547}, {981, 1348}, {984, 1317}, {988, 1451}, {993, 1378}, {994, 1329}, {998, 1812}, {999, 1372}, {1002, 1336}, {1004, 1461}, {1005, 1400}, {1006, 1346}, {1009, 1366}, {1012, 1361}, {1015, 1465}, {1016, 1432}, {1019, 1419}, {1022, 1477}, {1025, 1376}, {1027, 1292}, {1031, 1633}, {1034, 1389}, {1035, 1371}, {1042, 1527}, {1043, 1334}, {1045, 1387}, {1048, 1458}, {1050, 2369}, {1051, 1331}, {1057, 1695}, {1058, 1414}, {1060, 1408}, {1064, 1446}, {1067, 1543}, {1068, 1521}, {1069, 1413}, {1074, 1514}, {1075, 1492}, {1078, 1428}, {1084, 1687}, {1087, 1499}, {1088, 1457}, {1089, 1397}, {1092, 1468}, {1094, 1455}, {1096, 1443}, {1100, 1425}, {1104, 1464}, {1109, 1481}, {1112, 1606}, {1113, 1539}, {1115, 1758}, {1116, 1484}, {1124, 1510}, {1125, 1449}, {1127, 1626}, {1129, 1516}, {1133, 1575}, {1134, 1509}, {1136, 1532}, {1137, 1502}, {1139, 1537}, {1140, 1438}, {1142, 1563}, {1143, 1470}, {1144, 1403}, {1147, 2604}, {1148, 1674}, {1149, 1581}, {1152, 1541}, {1153, 1536}, {1155, 1534}, {1158, 1569}, {1159, 1529}, {1161, 1525}, {1163, 1592}, {1169, 1561}, {1171, 1612}, {1173, 1619}, {1174, 1491}, {1177, 2077}, {1178, 1577}, {1182, 2623}, {1183, 1560}, {1185, 1665}, {1188, 1611}, {1196, 1906}, {1197, 1590}, {1199, 1653}, {1200, 1636}, {1204, 1679}, {1210, 2455}, {1216, 1736}, {1217, 1625}, {1221, 1640}, {1223, 1929}, {1224, 1717}, {1229, 1617}, {1233, 1730}, {1235, 1678}, {1236, 1651}, {1237, 1643}, {1238, 1622}, {1239, 1580}, {1247, 1605}, {1250, 1820}, {1251, 1746}, {1253, 1721}, {1256, 2215}, {1257, 1799}, {1258, 1661}, {1260, 1708}, {1263, 1769}, {1264, 1713}, {1267, 1795}, {1271, 2004}, {1272, 1707}, {1276, 1694}, {1278, 1692}, {1281, 1682}, {1283, 1664}, {1287, 1882}, {1289, 1702}, {1290, 1684}, {1294, 1866}, {1299, 1845}, {1300, 1756}, {1301, 1710}, {1304, 1825}, {1305, 1765}, {1309, 1832}, {1310, 1774}, {1313, 2810}, {1316, 1767}, {1319, 1811}, {1320, 1754}, {1324, 2388}, {1325, 1787}, {1327, 1729}, {1333, 2140}, {1339, 1822}, {1340, 1785}, {1342, 1850}, {1343, 1802}, {1344, 1782}, {1350, 2840}, {1351, 2288}, {1352, 1842}, {1354, 1831}, {1356, 1888}, {1357, 1762}, {1360, 1838}, {1365, 1879}, {1368, 1884}, {1369, 1878}, {1370, 1859}, {1374, 2836}, {1375, 2036}, {1380, 1824}, {1383, 1919}, {1386, 1904}, {1392, 1863}, {1396, 1901}, {1399, 1978}, {1402, 1966}, {1407, 1914}, {1410, 1877}, {1412, 2042}, {1416, 1847}, {1418, 1772}, {1422, 1935}, {1424, 2040}, {1427, 2981}, {1430, 1837}, {1434, 1975}, {1436, 1953}, {1437, 1923}, {1440, 2051}, {1441, 1994}, {1442, 1869}, {1445, 2209}, {1448, 1949}, {1453, 2007}, {1460, 1947}, {1463, 2011}, {1467, 2230}, {1472, 1942}, {1474, 2205}, {1475, 1922}, {1479, 2031}, {1480, 1941}, {1483, 2134}, {1486, 2657}, {1487, 2026}, {1489, 2107}, {1490, 2030}, {1494, 1992}, {1495, 1964}, {1497, 1997}, {1501, 2098}, {1504, 1986}, {1505, 1970}, {1507, 2003}, {1508, 1981}, {1512, 2191}, {1513, 2088}, {1518, 2096}, {1520, 1972}, {1523, 3303}, {1524, 2059}, {1531, 2076}, {1545, 2390}, {1546, 2056}, {1549, 2421}, {1550, 2094}, {1551, 2070}, {1553, 2129}, {1554, 2033}, {1555, 2029}, {1557, 2116}, {1559, 3159}, {1565, 2067}, {1566, 2050}, {1568, 2105}, {1571, 2001}, {1573, 2256}, {1574, 2161}, {1579, 2103}, {1583, 2338}, {1584, 2180}, {1586, 2148}, {1587, 2137}, {1588, 2100}, {1589, 2080}, {1594, 2168}, {1596, 3385}, {1597, 2085}, {1601, 2195}, {1603, 2152}, {1604, 2142}, {1608, 2329}, {1609, 2281}, {1610, 2203}, {1614, 2198}, {1616, 2176}, {1621, 2184}, {1624, 2669}, {1628, 2194}, {1630, 2145}, {1632, 3560}, {1635, 2302}, {1638, 2229}, {1642, 2224}, {1645, 2954}, {1646, 2298}, {1647, 2276}, {1648, 2255}, {1650, 2239}, {1655, 2310}, {1657, 2182}, {1659, 2217}, {1663, 2193}, {1667, 2640}, {1668, 2366}, {1669, 2356}, {1670, 2174}, {1672, 2293}, {1673, 2202}, {1676, 2347}, {1681, 2271}, {1686, 3335}, {1689, 2437}, {1690, 2237}, {1691, 2222}, {1697, 4572}, {1698, 2297}, {1699, 2268}, {1700, 2261}, {1701, 2234}, {1704, 2132}, {1706, 2287}, {1712, 2246}, {1715, 2607}, {1716, 2439}, {1719, 2341}, {1723, 2368}, {1724, 2322}, {1726, 2335}, {1728, 2283}, {1732, 2376}, {1734, 3235}, {1735, 2495}, {1738, 2427}, {1740, 2490}, {1741, 2163}, {1743, 2362}, {1744, 2350}, {1745, 2318}, {1748, 3156}, {1749, 2453}, {1751, 2254}, {1753, 2345}, {1760, 2426}, {1761, 2317}, {1764, 2406}, {1771, 2538}, {1776, 2381}, {1779, 2557}, {1780, 2411}, {1781, 2385}, {1784, 2449}, {1789, 2402}, {1790, 2358}, {1792, 2393}, {1794, 2404}, {1797, 2910}, {1798, 2375}, {1801, 3252}, {1804, 2516}, {1805, 2332}, {1807, 2435}, {1808, 2420}, {1810, 2473}, {1814, 2365}, {1816, 3712}, {1817, 2400}, {1818, 2398}, {1827, 2957}, {1828, 2469}, {1830, 2415}, {1834, 2634}, {1835, 2459}, {1840, 2751}, {1841, 2523}, {1844, 2493}, {1849, 2485}, {1852, 2879}, {1856, 2720}, {1857, 2551}, {1858, 2444}, {1861, 3273}, {1862, 2613}, {1865, 2513}, {1868, 3991}, {1871, 2505}, {1873, 2395}, {1875, 2830}, {1876, 2502}, {1881, 2576}, {1886, 2773}, {1890, 2525}, {1891, 2462}, {1893, 2743}, {1894, 2572}, {1896, 2709}, {1897, 2511}, {1899, 2600}, {1900, 2515}, {1903, 2567}, {1908, 4079}, {1909, 2509}, {1911, 2564}, {1913, 2530}, {1916, 2592}, {1917, 2575}, {1921, 2708}, {1925, 2550}, {1926, 2549}, {1927, 2492}, {1931, 4030}, {1932, 2700}, {1933, 2665}, {1934, 2642}, {1937, 2597}, {1938, 2570}, {1940, 2548}, {1944, 2661}, {1951, 2789}, {1952, 2689}, {1955, 2675}, {1956, 2647}, {1958, 2632}, {1959, 2616}, {1961, 2931}, {1963, 2761}, {1968, 2953}, {1969, 2691}, {1974, 2611}, {1977, 2673}, {1980, 2986}, {1983, 2645}, {1985, 2738}, {1988, 2687}, {1989, 2546}, {1991, 2707}, {1996, 2780}, {1999, 2704}, {2006, 3078}, {2009, 2682}, {2013, 2556}, {2015, 2729}, {2016, 2684}, {2020, 2938}, {2021, 2702}, {2023, 2779}, {2025, 2671}, {2028, 3048}, {2035, 4593}, {2038, 2832}, {2039, 2627}, {2044, 3121}, {2045, 2785}, {2047, 2749}, {2048, 2668}, {2053, 4805}, {2055, 2747}, {2058, 2733}, {2061, 3037}, {2062, 2759}, {2064, 2806}, {2066, 2754}, {2069, 2902}, {2072, 2816}, {2074, 2809}, {2079, 2850}, {2082, 3254}, {2083, 3207}, {2084, 2856}, {2087, 2798}, {2090, 2956}, {2091, 2768}, {2092, 2746}, {2102, 2891}, {2109, 3138}, {2110, 2864}, {2111, 2758}, {2113, 2883}, {2114, 2804}, {2118, 4706}, {2119, 2788}, {2121, 2925}, {2122, 2921}, {2124, 2899}, {2125, 2834}, {2126, 2826}, {2128, 2778}, {2131, 3334}, {2139, 2882}, {2144, 3811}, {2147, 2881}, {2150, 3039}, {2151, 2869}, {2154, 2970}, {2155, 2862}, {2157, 4055}, {2158, 2814}, {2160, 2919}, {2165, 2792}, {2167, 2943}, {2170, 2873}, {2172, 3020}, {2173, 2843}, {2178, 2927}, {2179, 2917}, {2186, 3478}, {2187, 2846}, {2189, 2985}, {2197, 3244}, {2200, 2915}, {2207, 3067}, {2208, 3036}, {2211, 3908}, {2212, 2905}, {2214, 3024}, {2219, 2946}, {2221, 3261}, {2226, 3229}, {2227, 3015}, {2228, 2997}, {2232, 3064}, {2233, 2972}, {2236, 2960}, {2241, 3061}, {2242, 3007}, {2244, 2974}, {2248, 3119}, {2249, 3001}, {2251, 3148}, {2252, 3089}, {2253, 3026}, {2258, 3110}, {2259, 3099}, {2260, 2979}, {2263, 3433}, {2265, 2993}, {2267, 3046}, {2270, 3006}, {2273, 3338}, {2274, 3032}, {2275, 3004}, {2279, 3589}, {2280, 3097}, {2285, 3031}, {2290, 3172}, {2292, 3333}, {2295, 3057}, {2300, 3193}, {2301, 3084}, {2304, 3460}, {2305, 3163}, {2306, 3125}, {2308, 3130}, {2312, 3118}, {2314, 3425}, {2316, 3128}, {2320, 3218}, {2321, 3082}, {2324, 3117}, {2326, 3250}, {2328, 3012}, {2331, 3113}, {2334, 3202}, {2340, 3570}, {2343, 3396}, {2344, 3145}, {2349, 3763}, {2352, 3519}, {2353, 3197}, {2354, 3101}, {2360, 3423}, {2361, 3217}, {2364, 4038}, {2371, 3585}, {2372, 3289}, {2373, 3247}, {2374, 3177}, {2378, 3731}, {2379, 3213}, {2380, 3106}, {2383, 3201}, {2384, 3169}, {2387, 3314}, {2392, 3182}, {2397, 3810}, {2408, 3359}, {2409, 3190}, {2413, 3179}, {2417, 3103}, {2419, 3512}, {2423, 3258}, {2425, 4507}, {2429, 3393}, {2431, 3116}, {2433, 3341}, {2434, 3225}, {2441, 3327}, {2442, 3317}, {2443, 3302}, {2446, 3269}, {2448, 4240}, {2451, 3281}, {2452, 3232}, {2457, 3351}, {2461, 3552}, {2465, 3206}, {2467, 3413}, {2472, 3246}, {2475, 3299}, {2477, 3864}, {2478, 3598}, {2479, 3287}, {2481, 3500}, {2482, 3345}, {2484, 3286}, {2487, 3498}, {2488, 3297}, {2489, 3294}, {2497, 4154}, {2498, 3495}, {2499, 3325}, {2501, 3384}, {2504, 3941}, {2507, 3358}, {2508, 3355}, {2518, 3441}, {2519, 3381}, {2520, 3374}, {2521, 3350}, {2527, 3471}, {2529, 3368}, {2532, 3412}, {2533, 3379}, {2535, 3534}, {2537, 3323}, {2540, 3838}, {2541, 3693}, {2542, 3544}, {2543, 3488}, {2544, 3405}, {2553, 3924}, {2554, 3395}, {2555, 3391}, {2559, 3592}, {2560, 3538}, {2561, 3241}, {2563, 3510}, {2566, 3502}, {2569, 3422}, {2574, 3699}, {2578, 3536}, {2579, 3467}, {2580, 3459}, {2581, 3454}, {2582, 3377}, {2584, 3684}, {2585, 3475}, {2586, 3343}, {2587, 3312}, {2590, 3722}, {2594, 3409}, {2595, 3372}, {2599, 3466}, {2602, 3558}, {2606, 3518}, {2609, 3464}, {2615, 4125}, {2618, 3628}, {2619, 3605}, {2620, 3601}, {2621, 3525}, {2625, 3739}, {2626, 3418}, {2629, 3578}, {2630, 3508}, {2636, 3667}, {2637, 3480}, {2638, 3463}, {2644, 3621}, {2649, 4089}, {2650, 3671}, {2651, 3547}, {2652, 3449}, {2654, 3367}, {2656, 3584}, {2659, 3569}, {2663, 4619}, {2664, 3506}, {2667, 3772}, {2677, 3748}, {2678, 3720}, {2679, 3658}, {2680, 3529}, {2693, 4018}, {2694, 3614}, {2696, 3565}, {2698, 3844}, {2699, 3638}, {2706, 3640}, {2711, 3977}, {2712, 3619}, {2714, 4162}, {2715, 3665}, {2717, 3643}, {2718, 3549}, {2722, 4815}, {2723, 3600}, {2725, 4479}, {2726, 3635}, {2728, 3814}, {2731, 3852}, {2732, 3727}, {2735, 3759}, {2736, 3689}, {2737, 3651}, {2740, 3832}, {2741, 3676}, {2742, 3647}, {2745, 3898}, {2753, 3917}, {2756, 3719}, {2757, 3673}, {2763, 4052}, {2765, 3698}, {2767, 3825}, {2770, 3974}, {2771, 3709}, {2775, 3705}, {2777, 4012}, {2782, 3681}, {2784, 3890}, {2787, 4608}, {2791, 3656}, {2794, 3862}, {2795, 3714}, {2797, 3957}, {2800, 3762}, {2801, 3733}, {2802, 3704}, {2808, 3769}, {2812, 3848}, {2813, 3787}, {2818, 3743}, {2820, 3854}, {2823, 3771}, {2825, 3756}, {2828, 4075}, {2829, 3724}, {2838, 3999}, {2839, 3793}, {2842, 4745}, {2845, 3888}, {2848, 3932}, {2849, 3886}, {2852, 4550}, {2853, 3824}, {2855, 3777}, {2858, 3955}, {2859, 3882}, {2860, 3781}, {2861, 3776}, {2866, 3809}, {2867, 3737}, {2871, 4390}, {2872, 4186}, {2875, 3907}, {2876, 3767}, {2878, 4044}, {2886, 3900}, {2889, 3880}, {2893, 4011}, {2895, 3835}, {2897, 4782}, {2898, 3801}, {2901, 3995}, {2904, 4336}, {2907, 3935}, {2909, 3822}, {2912, 3916}, {2914, 3971}, {2923, 4197}, {2924, 4109}, {2929, 3927}, {2930, 3872}, {2933, 4192}, {2934, 4135}, {2936, 3923}, {2940, 3841}, {2941, 3798}, {2945, 4152}, {2948, 3948}, {2950, 3944}, {2952, 4027}, {2959, 4138}, {2962, 4199}, {2963, 4160}, {2964, 3921}, {2966, 4082}, {2967, 3896}, {2968, 3795}, {2976, 4151}, {2977, 3982}, {2978, 3966}, {2983, 3998}, {2988, 4779}, {2989, 4231}, {2990, 4121}, {2991, 4081}, {2995, 4074}, {2996, 3965}, {2999, 4363}, {3000, 4060}, {3003, 4302}, {3009, 4237}, {3010, 4017}, {3011, 3952}, {3014, 4443}, {3017, 4010}, {3019, 4037}, {3023, 4103}, {3028, 4176}, {3029, 4141}, {3030, 3914}, {3034, 4107}, {3035, 4070}, {3041, 4111}, {3043, 4051}, {3045, 4128}, {3050, 4249}, {3051, 4016}, {3053, 4097}, {3055, 3961}, {3059, 4700}, {3060, 4049}, {3063, 4330}, {3066, 3877}, {3069, 4278}, {3072, 4150}, {3074, 4057}, {3076, 3821}, {3080, 4263}, {3081, 4033}, {3086, 4140}, {3087, 4100}, {3091, 4447}, {3092, 4234}, {3093, 4219}, {3094, 4120}, {3096, 4223}, {3105, 4324}, {3108, 4449}, {3112, 4503}, {3115, 4222}, {3123, 4119}, {3127, 4173}, {3132, 4429}, {3133, 4184}, {3136, 4195}, {3137, 4146}, {3140, 4262}, {3143, 4210}, {3147, 4209}, {3150, 4026}, {3152, 4253}, {3153, 4169}, {3158, 4243}, {3162, 4272}, {3165, 4182}, {3167, 4563}, {3168, 4361}, {3171, 4543}, {3174, 4683}, {3175, 4271}, {3181, 4300}, {3184, 4395}, {3187, 4068}, {3189, 4291}, {3192, 4296}, {3195, 4247}, {3199, 4348}, {3204, 4307}, {3209, 4338}, {3211, 4261}, {3212, 4172}, {3215, 4314}, {3216, 4277}, {3220, 4343}, {3221, 4319}, {3223, 4992}, {3224, 4506}, {3227, 4495}, {3228, 4446}, {3231, 4425}, {3234, 4373}, {3237, 4375}, {3239, 4305}, {3243, 4528}, {3249, 4454}, {3256, 4471}, {3257, 4345}, {3260, 4610}, {3264, 4581}, {3265, 4290}, {3268, 4547}, {3271, 4549}, {3272, 4310}, {3275, 4356}, {3277, 4539}, {3278, 4270}, {3280, 4165}, {3283, 4526}, {3285, 4341}, {3291, 4493}, {3293, 4473}, {3296, 4546}, {3301, 4678}, {3306, 4453}, {3308, 4452}, {3309, 4442}, {3310, 4384}, {3316, 4466}, {3320, 4288}, {3322, 4511}, {3329, 4416}, {3331, 4298}, {3337, 4317}, {3347, 4663}, {3348, 4635}, {3349, 4523}, {3354, 4744}, {3357, 4519}, {3361, 4383}, {3364, 4522}, {3366, 4525}, {3370, 4650}, {3371, 4552}, {3383, 4438}, {3387, 4399}, {3389, 4914}, {3390, 4622}, {3398, 4532}, {3399, 4468}, {3400, 4372}, {3402, 4559}, {3404, 4434}, {3407, 4489}, {3411, 4579}, {3415, 4810}, {3417, 4725}, {3421, 4631}, {3427, 4897}, {3428, 4691}, {3429, 4605}, {3430, 4478}, {3432, 4398}, {3435, 4690}, {3436, 4601}, {3438, 4487}, {3440, 4712}, {3443, 4571}, {3446, 4675}, {3447, 4670}, {3448, 4599}, {3451, 5029}, {3452, 4567}, {3453, 4437}, {3457, 4803}, {3458, 4595}, {3462, 4945}, {3469, 4578}, {3473, 4892}, {3474, 4856}, {3477, 4708}, {3482, 4660}, {3483, 4628}, {3485, 4733}, {3486, 4621}, {3490, 4882}, {3491, 4717}, {3492, 4674}, {3494, 4809}, {3497, 4681}, {3505, 4847}, {3514, 4836}, {3515, 4742}, {3517, 4751}, {3521, 4657}, {3524, 4763}, {3527, 4876}, {3528, 4761}, {3531, 4969}, {3532, 4722}, {3540, 4789}, {3542, 4181}, {3551, 4773}, {3554, 5006}, {3555, 4850}, {3557, 4832}, {3562, 4705}, {3567, 4941}, {3568, 4644}, {3574, 4786}, {3576, 4921}, {3577, 4740}, {3580, 4768}, {3582, 4979}, {3583, 4778}, {3588, 4967}, {3591, 4928}, {3594, 4818}, {3595, 4772}, {3596, 4586}, {3603, 4839}, {3607, 4428}, {3609, 4801}, {3611, 5014}, {3612, 4889}, {3613, 4652}, {3616, 4939}, {3617, 4871}, {3623, 4821}, {3625, 4765}, {3630, 5039}, {3631, 4935}, {3633, 4926}, {3634, 4807}, {3637, 4845}, {3642, 4977}, {3645, 4814}, {3650, 5002}, {3654, 4959}, {3655, 4907}, {3661, 4972}, {3662, 4878}, {3663, 4771}, {3669, 4865}, {3675, 4888}, {3679, 5047}, {3680, 4956}, {3686, 4775}, {3692, 4948}, {3695, 5024}, {3703, 5027}, {3717, 4903}, {3726, 4932}, {3742, 5000}, {3747, 5008}, {3750, 4732}, {3753, 4953}, {3758, 5042}, {3765, 5022}, {3817, 5004}};
set<pii> s;
void solve() {
int x, y;
scanf("%d %d", &x, &y);
if (x > y) swap(x, y);
if (s.count(mp(x, y))) {
puts("Bob");
} else {
puts("Alice");
}
}
vector<pii> arr;
bool check(int x, int y) {
bool flag = true;
for (int i = 0; i < arr.size(); i++) {
int xx = arr[i].fr;
int yy = arr[i].sc;
int dx = x - xx, dy = y - yy;
if (dx == 0 || dy == 0) { // 有一个数字与之前的数字相等
flag = false;
break;
}
// if (dx < 0 || dy < 0) // 这个不能直接continue，虽然这个不用判断，但是意味着后面的条件也不用判断
if (dx > 0 && dy > 0) { // 如果出现负数，当前的x、y必不可能转换到xx、yy（减不可能让小的数变大）
if (dx % dy == 0 || dy % dx == 0) {
flag = false;
break;
}
}
dx = x - yy, dy = y - xx;
if (dx == 0 || dy == 0) {
flag = false;
break;
}
if (dx > 0 && dy > 0) {
if (dx % dy == 0 || dy % dx == 0) {
flag = false;
break;
}
}
}
return flag;
}
void init() {
arr.push_back(mp(0, 0));
for (int i = 1; i < N; i++) {
for (int j = i + 1; j < N; j++) {
if (check(i, j)) {
arr.push_back(mp(i, j));
break;
}
}
if (i % 100 == 0) cerr << i << endl;
}
for (pii it : arr) {
printf("{%d, %d}, ", it.fr, it.sc);
}
}
int main() {
// freopen("/Users/chant/out.txt", "w", stdout);
// init();
// return 0;
int size = sizeof(a) / sizeof(int) / 2;
for (int i = 0; i < size; i++) {
s.insert(mp(a[i][0], a[i][1]));
}
int T;
scanf("%d", &T);
while (T--) solve();
return 0;
}
B.Dropping
#include <iostream>
#include <cstring>
#include <cmath>
using namespace std;
void solve() {
double r, a, b, h;
cin >> r >> a >> b >> h;
double x = b * h / (a - b);
double m = 2 * r * (h + x) / a;
double ans = sqrt(m * m + r * r) - x;
if (ans < 0.0) {
puts("Drop");
} else {
puts("Stuck");
printf("%.10f\n", ans);
}
}
int main() {
solve();
return 0;
}
D.Determine the Photo Position
#include <iostream>
#include <cstdio>
#include <cstring>
using namespace std;
const int N = 2050;
int a[N][N];
inline int read() {
char ch = getchar();
while (ch != '1' && ch != '0') ch = getchar();
return ch - '0';
}
void solve() {
memset(a, -1, sizeof a);
int n, m;
scanf("%d %d", &n, &m);
int ans = 0;
for (int i = 0; i < n; i++) {
int c = -1, cnt = 0;
for (int j = 0; j < n; j++) {
int t = read();
if (t != c) c = t, cnt = 1;
else cnt ++;
if (c == 0 && cnt >= m) ans++;
}
}
cout << ans << endl;
}
int main() {
solve();
return 0;
}
F.Find 3-friendly Integers
#include <iostream>
#include <cstring>
#include <map>
using namespace std;
typedef long long LL;
const int N = 1005;
int a[N];
void solve() {
LL l, r;
scanf("%lld %lld", &l, &r);
if (l > 999) {
cout << r - l + 1 << endl;
} else if (l <= 999 && r > 999) {
cout << a[999] - a[l - 1] + r - 999 << endl;
} else {
cout << a[r] - a[l - 1] << endl;
}
}
bool check(int x) {
return x == 0 || x == 3 || x == 6 || x == 9;
}
int toDecimal(int x, int y, int z) {
return x * 100 + y * 10 + z;
}
void init() {
for (int i = 1; i < 1000; i++) {
int x = i / 100;
int y = i / 10 % 10;
int z = i % 10;
a[i] = a[i - 1];
if (i < 10) {
if (check(z)) a[i]++;
} else if (i < 100) {
if (check(y) || check(z)) a[i]++;
else if (toDecimal(0, y, z) % 3 == 0) a[i]++;
} else {
if (check(x) || check(y) || check(z)) a[i]++;
else if (toDecimal(0, x, y) % 3 == 0 || toDecimal(0, y, z) % 3 == 0) a[i]++;
else if (toDecimal(x, y, z) % 3 == 0) a[i]++;
}
}
}
int main() {
init();
// for (int i = 1; i < 25; i++) {
// cout << i << ':' << a[i] << endl;
// }
int T;
scanf("%d", &T);
while (T--) solve();
return 0;
}
K.Knowledge Test about Match
#include <iostream>
#include <cstring>
#include <algorithm>
using namespace std;
const int N = 1005;
int a[N], ans[N], va[N], vb[N];
void solve() {
memset(ans, 0, sizeof ans);
memset(va, 0, sizeof va);
memset(vb, 0, sizeof vb);
int n;
scanf("%d", &n);
for (int i = 0; i < n; i++) {
scanf("%d", &a[i]);
}
sort(a, a + n);
int cnt = 0;
for (int d = 0; cnt < n; d++) {
for (int i = 0; i < n; i++) {
if (vb[i]) continue; // b[i]用过了
int x = a[i];
if (x - d >= 0 && !va[x - d]) {
va[x - d] = 1;
vb[i] = 1;
ans[x - d] = x;
cnt++;
} else if (x + d < n && !va[x + d]) {
va[x + d] = 1;
vb[i] = 1;
ans[x + d] = x;
cnt++;
}
}
}
for (int i = 0; i < n; i++) {
printf("%d ", ans[i]);
}
puts("");
}
int main() {
int T;
scanf("%d", &T);
while (T--) solve();
return 0;
}
标签：int,ans,++,多校,牛客,2021,dx,dy,include 来源： https://www.cnblogs.com/chantmee/p/15359864.html
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