oj.uz

Submission #1090877

# Submission time Handle Problem Language Result Execution time Memory
1090877 2024-09-19T01:54:10 Z vjudge1 Automobil (COCI17_automobil) C++17
100 / 100
 17 ms 16132 KB 
#include <iostream>

typedef long long ll;
const int LEN = 1'000'001;
const ll MOD = 1e9 + 7;
int N, M, K;

ll R[LEN], C[LEN];
char c;

int main() {
	std::cin.tie(0)->sync_with_stdio(0);
	std::cin >> N >> M >> K;
	for (int i = 1; i <= N; ++i) R[i] = 1;
	for (int i = 1; i <= M; ++i) C[i] = 1;

	for (int i = 0, k, x, y; i < K; ++i) {
		std::cin >> c >> x >> y;
		if (c == 'R') R[x] = R[x] * y % MOD;
		else C[x] = C[x] * y % MOD;
	}

	// column process
	ll eff = 0;
	ll sum = 0;
	for (int i = 1; i <= M; ++i) {
		eff = (eff + C[i]) % MOD;
		sum = (sum + C[i] * i) % MOD;
	}

	// row proces
	ll ret = 0;
	for (ll i = 1; i <= N; ++i)
		ret = (ret + ((i - 1) * M % MOD * eff % MOD + sum) % MOD * R[i]) % MOD;
	std::cout << ret;
}

Compilation message

automobil.cpp: In function 'int main()':
automobil.cpp:17:18: warning: unused variable 'k' [-Wunused-variable]
   17 |  for (int i = 0, k, x, y; i < K; ++i) {
      |                  ^

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 436 KB Output is correct
8 Correct 0 ms 468 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 3 ms 2908 KB Output is correct
12 Correct 9 ms 8796 KB Output is correct
13 Correct 1 ms 856 KB Output is correct
14 Correct 11 ms 10248 KB Output is correct
15 Correct 9 ms 9196 KB Output is correct
16 Correct 16 ms 15964 KB Output is correct
17 Correct 16 ms 15960 KB Output is correct
18 Correct 16 ms 16132 KB Output is correct
19 Correct 17 ms 15964 KB Output is correct
20 Correct 16 ms 16128 KB Output is correct