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Submission #236788

# Submission time Handle Problem Language Result Execution time Memory
236788 2020-06-03T09:52:58 Z NONAME Automobil (COCI17_automobil) C++17
100 / 100
 29 ms 16000 KB 
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
const ll base = 1e9 + 7;
const int N = 1e6 + 10;

ll row[N], col[N];

void mul(ll &x, ll y) { (x *= y) %= base; }
void sum(ll &x, ll y) { (x += y) %= base; }

int main() {
	ll n, m, q;
	
	cin >> n >> m >> q;
	
	for (int i = 1; i <= n; ++i)
		row[i] = 1;
		
	for (int j = 1; j <= m; ++j)
		col[j] = 1;
	
	while (q--) {
		char type; ll x, y;
		
		cin >> type >> x >> y;
		
		if (type == 'R') mul(row[x], y);
			else mul(col[x], y);
	}
	
	ll sm = 0;
	for (int i = 1; i <= m; ++i)
		sum(sm, col[i]);
	
	ll cr = 0;
	for (int i = 1; i <= m; ++i) {
		ll vl = col[i];
		mul(vl, i);
		sum(cr, vl);
	}
	
	ll ans = 0;
	for (int i = 1; i <= n; ++i) {
		ll vl = cr;
		mul(vl, row[i]);
		sum(ans, vl);
		
		vl = sm;
		mul(vl, m);
		sum(cr, vl);
	}
	
	cout << ans;
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 6 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 9 ms 2816 KB Output is correct
12 Correct 17 ms 8704 KB Output is correct
13 Correct 6 ms 896 KB Output is correct
14 Correct 18 ms 10112 KB Output is correct
15 Correct 18 ms 9088 KB Output is correct
16 Correct 28 ms 16000 KB Output is correct
17 Correct 28 ms 16000 KB Output is correct
18 Correct 28 ms 16000 KB Output is correct
19 Correct 28 ms 16000 KB Output is correct
20 Correct 29 ms 16000 KB Output is correct