Submission #98105

#	Time	Username	Problem	Language	Result	Execution time	Memory
98105		dalgerok	Automobil (COCI17_automobil)	C++17	100 / 100	23 ms	8192 KiB

automobil

#include<bits/stdc++.h>
using namespace std;


const int N = 1e6 + 5, MOD = 1e9 + 7;



int n, m, k, a[N], b[N], ans;


int main(){
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    cin >> n >> m >> k;
    for(int i = 1; i <= n; i++){
        b[i] = 1;
    }
    for(int i = 1; i <= m; i++){
        a[i] = 1;
    }
    while(k--){
        char c;
        int x, y;
        cin >> c >> x >> y;
        if(c == 'R'){
            b[x] = 1LL * b[x] * y % MOD;
        }
        else{
            a[x] = 1LL * a[x] * y % MOD;
        }
    }
    int cur1 = 0, cur2 = 0;
    for(int i = 1; i <= m; i++){
        cur1 = (cur1 + 1LL * i * a[i]) % MOD;
        cur2 = (cur2 + 1LL * m * a[i]) % MOD;
    }
    for(int i = 1; i <= n; i++){
        ans = (ans + 1LL * b[i] * (cur1 + 1LL * cur2 * (i - 1) % MOD) % MOD) % MOD;
    }
    cout << ans;
}

• Subtask 1: 100 / 100