oj.uz

Submission #1058464

# Submission time Handle Problem Language Result Execution time Memory
1058464 2024-08-14T10:08:24 Z rainboy COVID tests (CEOI24_covid) C
53.04 / 100
 1384 ms 596 KB 
#include <stdio.h>
#include <string.h>

#define N	1000

int n;

int query(int l, int r) {
	static char cc[N + 1], s[2];

	memset(cc, '0', n * sizeof *cc), memset(cc + l, '1', (r - l) * sizeof *cc), cc[n] = 0;
	printf("Q %s\n", cc), fflush(stdout);
	scanf("%s", s);
	return s[0] == 'P';
}

char cc[N + 1];

int solve(int l, int r, int has) {
	int m;

	if (!has && !query(l, r)) {
		memset(cc + l, '0', (r - l) * sizeof *cc);
		return 0;
	}
	if (r - l > 1) {
		m = (l + r) / 2;
		solve(m, r, !solve(l, m, 0));
	}
	return 1;
}

int main() {
	int t;

	scanf("%d%*f%d", &n, &t);
	while (t--) {
		memset(cc, '1', n * sizeof *cc), cc[n] = 0;
		solve(0, n, 0);
		printf("A %s\n", cc), fflush(stdout);
		scanf("%*s");
	}
	return 0;
}

Compilation message

Main.c: In function 'query':
Main.c:13:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |  scanf("%s", s);
      |  ^~~~~~~~~~~~~~
Main.c: In function 'main':
Main.c:36:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   36 |  scanf("%d%*f%d", &n, &t);
      |  ^~~~~~~~~~~~~~~~~~~~~~~~
Main.c:41:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   41 |   scanf("%*s");
      |   ^~~~~~~~~~~~

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 344 KB Output is correct
2 Correct 6 ms 344 KB Output is correct
3 Correct 5 ms 356 KB Output is correct
4 Correct 7 ms 344 KB Output is correct
5 Correct 8 ms 344 KB Output is correct
6 Correct 7 ms 344 KB Output is correct
7 Correct 8 ms 344 KB Output is correct
8 Correct 6 ms 344 KB Output is correct
9 Correct 6 ms 344 KB Output is correct
10 Correct 3 ms 344 KB Output is correct
11 Correct 5 ms 344 KB Output is correct
12 Correct 5 ms 344 KB Output is correct
13 Correct 6 ms 344 KB Output is correct
14 Correct 5 ms 344 KB Output is correct
15 Correct 4 ms 344 KB Output is correct
16 Correct 7 ms 344 KB Output is correct
17 Correct 0 ms 596 KB Output is correct

Subtask #2
43.039999998 / 90.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 344 KB Output is correct (P=0.001, F=15.1, Q=13.8) -> 90.00 points
2 Correct 88 ms 344 KB Output is correct (P=0.005256, F=51.1, Q=60.7) -> 51.39 points
3 Correct 182 ms 344 KB Output is correct (P=0.011546, F=94.9, Q=117.9) -> 45.70 points
4 Correct 396 ms 344 KB Output is correct (P=0.028545, F=191.5, Q=240.7) -> 44.39 points
5 Correct 490 ms 344 KB Output is correct (P=0.039856, F=246.3, Q=309.4) -> 44.45 points
6 Correct 717 ms 344 KB Output is correct (P=0.068648, F=366.2, Q=458.3) -> 44.87 points
7 Correct 968 ms 344 KB Output is correct (P=0.104571, F=490.3, Q=612.9) -> 45.00 points
8 Correct 1244 ms 344 KB Output is correct (P=0.158765, F=639.1, Q=801.1) -> 44.69 points
9 Correct 1384 ms 344 KB Output is correct (P=0.2, F=731.4, Q=930.9) -> 43.04 points