Submission #1030384

#	Time	Username	Problem	Language	Result	Execution time	Memory
1030384		caterpillow	Bomb (IZhO17_bomb)	C++17	24 / 100	186 ms	6232 KiB

bomb

#include <bits/stdc++.h>

using namespace std;

using ll = long long;
#define vt vector
#define f first
#define s second
#define all(x) (x).begin(), (x).end()
#define FOR(i, a, b)  for (int i = (a); i < (b); i++)
#define F0R(i, b) FOR(i, 0, b)
#define ROF(i, a, b) for (int i = (b) - 1; i >= (a); i--)
#define pb push_back
#define endl '\n'

#ifndef LOCAL
#define cerr if (0) std::cerr
#endif

/*

N^3: find max width for each given height

*/

int rs, cs;
vt<vt<bool>> grid;

main() {
    cin.tie(0)->sync_with_stdio();

    cin >> rs >> cs;
    rs += 2, cs += 2;
    grid.resize(rs, vt<bool>(cs));
    FOR (r, 1, rs - 1) {
        FOR (c, 1, cs - 1) {
            char ch; cin >> ch;
            grid[r][c] = ch - '0';
        }
    }

    int mxw = cs, mxh = rs;
    F0R (r, rs) {
        int streak = 0;
        F0R (c, cs) {
            if (grid[r][c]) streak++;
            else if (streak) mxw = min(mxw, streak), streak = 0;
        }
    }
    F0R (c, cs) {
        int streak = 0;
        F0R (r, rs) {
            if (grid[r][c]) streak++;
            else if (streak) mxh = min(mxh, streak), streak = 0;
        }
    }

    cout << mxw * mxh << endl;
}

Compilation message (stderr)

bomb.cpp:29:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   29 | main() {
      | ^~~~

• Subtask 1: 24 / 100