Easy Finding Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 15668 Accepted: 4163 Description Given a M×N matrix A. Aij ∈ {0, 1} (0 ≤ i < M, 0 ≤ j < N), could you find some rows that let every cloumn contains and only contains one 1.…
Easy Finding Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 16178 Accepted: 4343 Description Given a M×N matrix A. Aij ∈ {0, 1} (0 ≤ i < M, 0 ≤ j < N), could you find some rows that let every cloumn contains and only contains one 1.…
Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 16202 Accepted: 4349 Description Given a M×N matrix A. Aij ∈ {0, 1} (0 ≤ i < M, 0 ≤ j < N), could you find some rows that let every cloumn contains and only contains one 1. Input There a…
#include<cstdio> #include<cstring> #include<cmath> #include<algorithm> using namespace std; ; ; int A[R][C]; int n,m; int ff[R][R]; int flag; int U[R]; int cnt; int sum[C]; void DFS(int tot,int x,int now) { int ii,i,j; ; if(x==tot)…
显然这是一道dfs简单题 或许匹配也能做 然而用了dancing links 显然这也是一道模板题 好的吧 调了一上午 终于弄好了模板 Easy Finding Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 19052 Accepted: 5273 Description Given a M×N matrix A. Aij ∈ {0, 1} (0 ≤ i < M, 0 ≤ j < N), could you fin…
B. Preparing Olympiad You have n problems. You have estimated the difficulty of the i-th one as integer ci. Now you want to prepare a problemset for a contest, using some of the problems you've made. A problemset for the contest must consist of at le…
