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Submission #823870

# Submission time Handle Problem Language Result Execution time Memory
823870 2023-08-13T09:08:55 Z rainboy Triangle Collection (CCO23_day2problem3) C
5 / 25
 57 ms 1372 KB 
#include <stdio.h>
#include <string.h>

#define N	2000

int main() {
	static int aa[N], aa_[N];
	int n, q, i, j, d, k, ans;

	scanf("%d%d", &n, &q);
	for (i = 0; i < n; i++)
		scanf("%d", &aa[i]);
	while (q--) {
		scanf("%d%d", &i, &d), i--;
		aa[i] += d;
		memcpy(aa_, aa, n * sizeof *aa);
		ans = 0;
		for (i = n - 1, j = n - 1; i >= 0; i--)
			while (aa_[i] >= 2) {
				while (j >= 0 && (j > i * 2 || aa_[j] % 2 == 0))
					j--;
				if (j >= 0)
					ans++, aa_[i] -= 2, aa_[j]--;
				else {
					k = 0;
					while (i >= 0)
						k += aa_[i], i--;
					ans += k / 3;
					break;
				}
			}
		printf("%d\n", ans);
	}
	return 0;
}

Compilation message

Main.c: In function 'main':
Main.c:10:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |  scanf("%d%d", &n, &q);
      |  ^~~~~~~~~~~~~~~~~~~~~
Main.c:12:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |   scanf("%d", &aa[i]);
      |   ^~~~~~~~~~~~~~~~~~~
Main.c:14:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 |   scanf("%d%d", &i, &d), i--;
      |   ^~~~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 2 ms 236 KB Output is correct
4 Correct 1 ms 300 KB Output is correct
5 Correct 1 ms 296 KB Output is correct
6 Correct 19 ms 316 KB Output is correct
7 Correct 20 ms 296 KB Output is correct
8 Correct 12 ms 212 KB Output is correct
9 Correct 20 ms 328 KB Output is correct
10 Correct 20 ms 324 KB Output is correct
11 Correct 15 ms 212 KB Output is correct
12 Correct 13 ms 332 KB Output is correct
13 Correct 6 ms 308 KB Output is correct
14 Correct 6 ms 212 KB Output is correct

Subtask #2
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 2 ms 236 KB Output is correct
4 Correct 1 ms 300 KB Output is correct
5 Correct 1 ms 296 KB Output is correct
6 Correct 19 ms 316 KB Output is correct
7 Correct 20 ms 296 KB Output is correct
8 Correct 12 ms 212 KB Output is correct
9 Correct 20 ms 328 KB Output is correct
10 Correct 20 ms 324 KB Output is correct
11 Correct 15 ms 212 KB Output is correct
12 Correct 13 ms 332 KB Output is correct
13 Correct 6 ms 308 KB Output is correct
14 Correct 6 ms 212 KB Output is correct
15 Correct 1 ms 288 KB Output is correct
16 Incorrect 0 ms 212 KB Output isn't correct
17 Halted 0 ms 0 KB -

Subtask #3
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 328 KB Output is correct
2 Correct 17 ms 332 KB Output is correct
3 Correct 57 ms 1372 KB Output is correct
4 Runtime error 1 ms 340 KB Execution killed with signal 11
5 Halted 0 ms 0 KB -

Subtask #4
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 360 KB Output is correct
2 Incorrect 9 ms 360 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #5
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 2 ms 236 KB Output is correct
4 Correct 1 ms 300 KB Output is correct
5 Correct 1 ms 296 KB Output is correct
6 Correct 19 ms 316 KB Output is correct
7 Correct 20 ms 296 KB Output is correct
8 Correct 12 ms 212 KB Output is correct
9 Correct 20 ms 328 KB Output is correct
10 Correct 20 ms 324 KB Output is correct
11 Correct 15 ms 212 KB Output is correct
12 Correct 13 ms 332 KB Output is correct
13 Correct 6 ms 308 KB Output is correct
14 Correct 6 ms 212 KB Output is correct
15 Correct 1 ms 288 KB Output is correct
16 Incorrect 0 ms 212 KB Output isn't correct
17 Halted 0 ms 0 KB -