Submission #109219

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
109219	2019-05-05 14:50:56	ihdignite	Bomb (IZhO17_bomb)	C++14	100 / 100	494 ms	62328 KiB

bomb

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#include <bits/stdc++.h>
using namespace std;
const int mxN=2500;
int n, m, mxw=mxN, mxh=mxN, u[mxN][mxN], d[mxN][mxN], a[mxN], ans;
string g[mxN];
int main() {
  ios::sync_with_stdio(0);
  cin.tie(0);
  cin >> n >> m;
  for(int i=0; i<n; ++i) {
    cin >> g[i];
    for(int j=0, w=0; j<m; ++j) {
      w=g[i][j]&1?w+1:0;
      if(w&&(j+1>=m||g[i][j+1]&1^1))
        mxw=min(w, mxw);
    }
  }
  for(int j=0; j<m; ++j) {
    for(int i=0, h=0; i<n; ++i) {
      h=g[i][j]&1?h+1:0;
      if(h&&(i+1>=n||g[i+1][j]&1^1))
        mxh=min(h, mxh);
      u[i][j]=i&&g[i-1][j]&1?u[i-1][j]:i;
    }
    for(int i=n-1; ~i; --i)
      d[i][j]=i<n-1&&g[i+1][j]&1?d[i+1][j]:i;
  }
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

bomb.cpp: In function 'int main()':
bomb.cpp:17:28: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
    if(w&&(j+1>=m||g[i][j+1]&1^1))
bomb.cpp:24:28: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
    if(h&&(i+1>=n||g[i+1][j]&1^1))
bomb.cpp: In lambda function:
bomb.cpp:36:31: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
     if(j&&g[i][j-1]&1||g[i][j]&1^1)
bomb.cpp:36:9: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
     if(j&&g[i][j-1]&1||g[i][j]&1^1)
        ~^~~~~~~~~~~~~

• Subtask 1: 100 / 100