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Submission #198593

# Submission time Handle Problem Language Result Execution time Memory
198593 2020-01-26T18:16:51 Z ZwariowanyMarcin Automobil (COCI17_automobil) C++14
100 / 100
 21 ms 8188 KB 
#include <bits/stdc++.h>
#define fi first
#define se second
#define mp make_pair
#define ss(x) (int) x.size()
#define pb push_back
#define LL long long
#define ld long double
#define cat(x) cerr << #x << " = " << x << endl
#define FOR(i, j, n) for(int i = j; i <= n; ++i)
#define boost cin.tie(0), ios_base::sync_with_stdio(0);


using namespace std;		

const int MOD = 1e9 + 7;

const int nax = 1e6 + 111;

int n, m, k;
char c;
int x, y;

int row[nax];
int col[nax];

int main() {
	scanf ("%d %d %d", &n, &m, &k);
	for (int i = 1; i <= max(n, m); ++i)
		row[i] = col[i] = 1;
	for (int i = 1; i <= k; ++i) {
		scanf (" %c%d%d", &c, &x, &y);
		if (c == 'R')
			row[x] = 1LL * row[x] * y % MOD;
		else
			col[x] = 1LL * col[x] * y % MOD;
	}
	
	LL ans = 0;
	LL value = 0;
	LL sum = 0;
	
	for (int i = 1; i <= n; ++i) {
		sum = (sum + row[i]) % MOD;
		value = (value + 1LL * (1 + 1LL * (i - 1) * m) % MOD * row[i]) % MOD;
	}
	
	for (int i = 1; i <= m; ++i) {
		ans = (ans + value * col[i]) % MOD;
		value = (value + sum) % MOD;
	}
	printf ("%lld", ans);	
	
	return 0;
}

Compilation message

automobil.cpp: In function 'int main()':
automobil.cpp:28:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf ("%d %d %d", &n, &m, &k);
  ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
automobil.cpp:32:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf (" %c%d%d", &c, &x, &y);
   ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 504 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 6 ms 376 KB Output is correct
4 Correct 6 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 6 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 8 ms 1784 KB Output is correct
12 Correct 14 ms 5496 KB Output is correct
13 Correct 6 ms 760 KB Output is correct
14 Correct 16 ms 7032 KB Output is correct
15 Correct 17 ms 5112 KB Output is correct
16 Correct 21 ms 8188 KB Output is correct
17 Correct 21 ms 8184 KB Output is correct
18 Correct 21 ms 8184 KB Output is correct
19 Correct 20 ms 8184 KB Output is correct
20 Correct 21 ms 8184 KB Output is correct