Submission #693940

#	Time	Username	Problem	Language	Result	Execution time	Memory
693940		Gital	Bitaro the Brave (JOI19_ho_t1)	C++11	20 / 100	1068 ms	684 KiB

joi2019_ho_t1

#include<bits/stdc++.h>
using namespace std;
#define endl '\n';
typedef long long ll;
int H,W;
string S[3005];
ll ans = 0;
void searchC (int i , int j , char c) {
    if(c == 'I') {
        for(int k = i + 1; k <= H; k++) {
            if(S[k][j] == 'I') {
                searchC(i,j,'O');
            }
        }
    }
    else if (c == 'O') {
        for(int l = j + 1; l <= W; l++) {
            if(S[i][l] == 'O') {
                ans += 1;
                //cout << i << " " << j << endl;
            }
        }
    }
    return;
}
int main() {
    ios::sync_with_stdio(0); cin.tie(0);
    cin >> H >> W;
    for(int i = 1; i<= H; i++) {
        string s; cin >> s;
        S[i] = s;
        //cout << S[i] << endl;
    }

    for(int i = 1; i <= H; i++) {
        for(int j = 0; j < W; j++) {
            if(S[i][j] == 'J') {
                //cout << i << " " << j;
                searchC(i,j,'I');
            }
        }
    }
    cout << ans;
    return 0;
}

• Subtask 1: 20 / 20
• Subtask 2: 0 / 30
• Subtask 3: 0 / 50