Submission #388274

#	Time	Username	Problem	Language	Result	Execution time	Memory
388274		patrikpavic2	Bomb (IZhO17_bomb)	C++17	0 / 100	1 ms	340 KiB

bomb

#include <cstdio>
#include <algorithm>

using namespace std;

const int N = 2505;

int n, m;
char s[N][N];

int main(){
	freopen("bomb.in", "r", stdin);
	freopen("bomb.out", "w", stdout);
	scanf("%d%d", &n, &m);
	for(int i = 0;i < n;i++)
		for(int j = 0;j < m;j++)
			scanf(" %c", &s[i][j]);
	int ansi = n, ansj = m;
	for(int i = 0;i < n;i++){
		for(int j = 0;j < m;j++){
			if(s[i][j] != '1') continue;
			int il = i, ir = i;
			int jl = j, jr = j;
			while(il > 0 && s[il - 1][j] == '1') il--;
			while(ir + 1 < n && s[ir + 1][j] == '1') ir++;
			while(jl > 0 && s[i][jl - 1] == '1') jl--;
			while(jr + 1 < m && s[i][jr + 1] == '1') jr++;
			ansi = min(ansi, ir - il + 1);
			ansj = min(ansj, jr - jl + 1);
		}
	}
	printf("%d\n", ansi * ansj);
	return 0;
}

Compilation message (stderr)

bomb.cpp: In function 'int main()':
bomb.cpp:12:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   12 |  freopen("bomb.in", "r", stdin);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
bomb.cpp:13:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   13 |  freopen("bomb.out", "w", stdout);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
bomb.cpp:14:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   14 |  scanf("%d%d", &n, &m);
      |  ~~~~~^~~~~~~~~~~~~~~~
bomb.cpp:17:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   17 |    scanf(" %c", &s[i][j]);
      |    ~~~~~^~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 100