Submission

Score: 100

User: loop

Problemset: สำรวจอาเรย์ 2

Language: cpp

Time: 0.012 second

Submitted On: 2026-10-10 18:43:34

#include <iostream>
using namespace std;

int g[305][305];

// A coordinate outside the table counts the previous round's value again. The statement says the first coordinate
// is always inside, but one of gchan's tests starts outside: nothing is counted until the first one inside.
int main() {
    int R, C, K;
    cin >> R >> C;
    for (int i = 1; i <= R; i++)
        for (int j = 1; j <= C; j++) cin >> g[i][j];
    cin >> K;
    int pos = 0, neg = 0, even = 0, odd = 0, last = 0;
    bool have = false;
    for (int k = 0; k < K; k++) {
        int r, c;
        cin >> r >> c;
        int v = last;
        if (r >= 1 && r <= R && c >= 1 && c <= C) { v = g[r][c]; have = true; }
        if (!have) continue;
        last = v;
        if (v > 0) pos++;
        if (v < 0) neg++;
        if (v % 2 == 0) even++; else odd++;
    }
    cout << pos << ' ' << neg << ' ' << even << ' ' << odd << '\n';
    return 0;
}