Submission #337282

#	Time	Username	Problem	Language	Result	Execution time	Memory
337282		boykut	Marriage questions (IZhO14_marriage)	C++14	32 / 100	5 ms	384 KiB

marriage

#include <bits/stdc++.h>

using namespace std;

const int MAXN = 101, MAXM = 51;
const int MAXK = MAXN * MAXM;

int dp[MAXN][MAXM], a[MAXK], b[MAXK], n, m, k;

bool can (int l, int r) {
   int mas[m + 1];
   fill (mas, mas + 1 + m, 0);
   for (int i = l; i <= r; i++) {
      for (int j = 1; j <= m; j++) {
         mas[j] |= dp[i][j];
      }
   }
   if (count(mas, mas + 1 + m, 0) == 1) {
      //cout << "(" << l << ' ' << r << "), ";
      return true;
   } else return false;
}

signed main() {
   ios::sync_with_stdio(0);
   cin.tie(0);
   
   cin >> n >> m >> k;
   
   if (!(n <= 100 && m <= 50))
      return 0;
   
   for (int i = 0; i < k; i++) {
      cin >> a[i] >> b[i];
      dp[a[i]][b[i]] = 1;
   }
   
   int ans = 0;
   for (int l = 1; l <= n; l++) {
      for (int r = l + m - 1; r <= n; r++) {
         if (can(l, r)) 
            ans++;
      }
   }
   
   cout << ans << '\n';
   
   return 0;
}

• Subtask 1: 32 / 100