제출 #1042004

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1042004		Blagoj	Bob (COCI14_bob)	C++17	120 / 120	73 ms	37700 KiB

bob

#include <bits/stdc++.h>

using namespace std;

#define endl '\n'
#define ll long long
#define all(x) (x).begin(), (x).end()

const int mxn = 1e3 + 100;
ll a[mxn][mxn], h[mxn][mxn], c[mxn][mxn];

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int n, m;
    cin >> n >> m;
    for (int i = 1; i <= n; i++) { 
        for (int j = 1; j <= m; j++) {
            cin >> a[i][j];
            h[i][j] = 1;
            if (a[i][j] == a[i - 1][j]) h[i][j] += h[i - 1][j];
        }
    }
    stack<int> s;
    ll ans = 0;
    for (int i = 1; i <= n; i++) {
        while (s.size()) s.pop();
        for (int j = 1; j <= m; j++) {
            if (a[i][j] == a[i][j - 1]) {
                while (s.size() && h[i][s.top()] > h[i][j]) s.pop();
                c[i][j] = c[i][s.top()] + (j - s.top()) * h[i][j];
                ans += c[i][j];
                s.push(j);
            }
            else {
                c[i][j - 1] = 0;
                h[i][j - 1] = 0;
                c[i][j] = h[i][j];
                ans += c[i][j];
                s.push(j - 1);
                s.push(j);
            }
        }
    }
    cout << ans;
}

• Subtask 1: 12 / 12
• Subtask 2: 12 / 12
• Subtask 3: 12 / 12
• Subtask 4: 12 / 12
• Subtask 5: 12 / 12
• Subtask 6: 12 / 12
• Subtask 7: 12 / 12
• Subtask 8: 12 / 12
• Subtask 9: 12 / 12
• Subtask 10: 12 / 12