Submission #227916

#	Time	Username	Problem	Language	Result	Execution time	Memory
227916		Vimmer	Strah (COCI18_strah)	C++14	44 / 110	1091 ms	9856 KiB

strah

#include <bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>

#pragma GCC optimize("unroll-loops")
#pragma GCC optimize("-O3")
#pragma GCC optimize("Ofast")
//#pragma GCC optimize("fast-math")
//#pragma GCC optimize("no-stack-protector")

#define F first
#define S second
#define sz(x) int(x.size())
#define pb push_back
#define N 305
#define M ll(1e9 + 7)

using namespace std;

//using namespace __gnu_pbds;

typedef long double ld;

typedef long long ll;

typedef short int si;

//typedef tree<int, null_type, less <int>, rb_tree_tag, tree_order_statistics_node_update> ordered_set;

int n, m, pr[N][N];

ll ans;

int main()
{
    //freopen("input.txt", "r", stdin); freopen("output.txt", "w", stdout);

    ios_base::sync_with_stdio(0); istream::sync_with_stdio(0); cin.tie(0); cout.tie(0);

    cin >> n >> m;

    string s[n];

    for (int i = 0; i < n; i++) cin >> s[i];

    for (int i = 0; i < n; i++)
      for (int j = 0; j < m; j++)
      {
          if (i != 0) pr[i][j] += pr[i - 1][j];

          if (j != 0) pr[i][j] += pr[i][j - 1];

          if (i != 0 && j != 0) pr[i][j] -= pr[i - 1][j - 1];

          if (s[i][j] == '#') pr[i][j]++;
      }

   for (register int i = 0; i < n; i++)
    for (register int j = 0; j < m; j++)
        for (register int a = 1; a <= n - i; a++)
          for (register int b = 1; b <= m - j; b++)
           {
                int sm = pr[i + a - 1][j + b - 1];

                if (i != 0) sm -= pr[i - 1][j + b - 1];

                if (j != 0) sm -= pr[i + a - 1][j - 1];

                if (i != 0 && j != 0) sm += pr[i - 1][j - 1];

                if (sm != 0) break;

                ans += a * b;
           }

    cout << ans << endl;
}

Compilation message (stderr)

strah.cpp: In function 'int main()':
strah.cpp:58:4: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
    for (register int i = 0; i < n; i++)
    ^~~
strah.cpp:76:5: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
     cout << ans << endl;
     ^~~~

• Subtask 1: 11 / 11
• Subtask 2: 11 / 11
• Subtask 3: 11 / 11
• Subtask 4: 11 / 11
• Subtask 5: 0 / 11
• Subtask 6: 0 / 11
• Subtask 7: 0 / 11
• Subtask 8: 0 / 11
• Subtask 9: 0 / 11
• Subtask 10: 0 / 11