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Submission #470909

# Submission time Handle Problem Language Result Execution time Memory
470909 2021-09-06T07:39:55 Z mariowong Automobil (COCI17_automobil) C++14
100 / 100
 22 ms 16020 KB 
#include <bits/stdc++.h>
const long long xmod=1e9+7;
using namespace std;
 
int n,m,q,id;
long long r[1000005],c[1000005],num,sum,ans,mult;
char op;
int main(){
	ios::sync_with_stdio(false);
	cin >> n >> m >> q;
	for (int i=1;i<=n;i++){
		r[i]=1;
	}
	for (int i=1;i<=m;i++){
		c[i]=1;
	}
	for (int i=1;i<=q;i++){
		cin >> op >> id >> num;
		if (op == 'R') r[id]*=num,r[id]%=xmod;
		if (op == 'S') c[id]*=num,c[id]%=xmod;
	}
	for (long long i=1;i<=m;i++){
		sum+=i*c[i]; sum%=xmod;
		mult+=c[i]; mult%=xmod;
	}
	ans=sum*r[1]; ans%=xmod;
	for (int i=2;i<=n;i++){
		sum+=m*mult; sum%=xmod;
		ans+=sum*r[i]; ans%=xmod;
	}
	cout << ans << "\n";
	return 0;
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 4 ms 2764 KB Output is correct
12 Correct 11 ms 8720 KB Output is correct
13 Correct 1 ms 844 KB Output is correct
14 Correct 11 ms 10060 KB Output is correct
15 Correct 11 ms 9036 KB Output is correct
16 Correct 20 ms 15992 KB Output is correct
17 Correct 19 ms 15992 KB Output is correct
18 Correct 20 ms 16020 KB Output is correct
19 Correct 19 ms 15988 KB Output is correct
20 Correct 22 ms 15948 KB Output is correct