题意: A,B,C,D四组数中各取一个数,使这四个数相加为0,问有多少组取法? 分析: 四个数列有n4种取法,规模较大,但是可以将他们分成AB,CD两组,分别枚举,最后再合并. 代码: #include<cstdio> #include<algorithm> #include<iostream> using namespace std; typedef long long ll; const int maxn = 4005, maxm = 16000025; int c…
传送门 4 Values whose Sum is 0 Time Limit: 15000MS Memory Limit: 228000K Total Submissions: 20334 Accepted: 6100 Case Time Limit: 5000MS Description The SUM problem can be formulated as follows: given four lists A, B, C, D of integer values, compute…
4 Values whose Sum is 0 Time Limit: 15000MS Memory Limit: 228000K Total Submissions: 13069 Accepted: 3669 Case Time Limit: 5000MS Description The SUM problem can be formulated as follows: given four lists A, B, C, D of integer values, compute how…
4 Values whose Sum is 0 Time Limit: 15000MS Memory Limit: 228000K Total Submissions: 17875 Accepted: 5255 Case Time Limit: 5000MS Description The SUM problem can be formulated as follows: given four lists A, B, C, D of integer values, compute how man…
4 Values whose Sum is 0 Time Limit: 15000MS Memory Limit: 228000K Total Submissions: 25615 Accepted: 7697 Case Time Limit: 5000MS Description The SUM problem can be formulated as follows: given four lists A, B, C, D of integer values, compute how…
4 Values whose Sum is 0 Time Limit: 15000MS Memory Limit: 228000K Total Submissions: 25675 Accepted: 7722 Case Time Limit: 5000MS Description The SUM problem can be formulated as follows: given four lists A, B, C, D of integer values, compute how…
4 Values whose Sum is 0 Time Limit: 15000MS Memory Limit: 228000K Total Submissions: 26974 Accepted: 8133 Case Time Limit: 5000MS Description The SUM problem can be formulated as follows: given four lists A, B, C, D of integer values, compute how man…
4 Values whose Sum is 0 Time Limit: 15000MS Memory Limit: 228000K Total Submissions: 29243 Accepted: 8887 Case Time Limit: 5000MS Description The SUM problem can be formulated as follows: given four lists A, B, C, D of integer values, compute how…
4 Values whose Sum is 0 Time Limit: 15000MS Memory Limit: 228000K Total Submissions: 18221 Accepted: 5363 Case Time Limit: 5000MS Description The SUM problem can be formulated as follows: given four lists A, B, C, D of integer values, compute how…
4 Values whose Sum is 0 Time Limit: 15000MS Memory Limit: 228000K Total Submissions: 19322 Accepted: 5778 Case Time Limit: 5000MS Description The SUM problem can be formulated as follows: given four lists A, B, C, D of integer values, compute how man…