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Submission #827249

# Submission time Handle Problem Language Result Execution time Memory
827249 2023-08-16T10:10:27 Z rainboy Brperm (RMI20_brperm) C
13 / 100
 117 ms 4452 KB 
#include "brperm.h"
#include <string.h>

#define N	500000

char cc[N + 1]; int n;

void init(int n_, const char *cc_) {
	memcpy(cc, cc_, (n = n_) * sizeof *cc);
}

int query(int i_, int k) {
	int n_, m, i, j;

	n_ = 1 << k;
	if (i_ + n_ > n)
		return 0;
	if (n > 1000 && n_ > 256)
		return 0;
	for (i = 0, j = 1; j < n_; j++) {
		for (m = n_ >> 1; ((i ^= m) & m) == 0; m >>= 1)
			;
		if (cc[i_ + i] != cc[i_ + j])
			return 0;
	}
	return 1;
}

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct

Subtask #2
0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Incorrect 22 ms 596 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #3
0 / 17.0

# Verdict Execution time Memory Grader output
1 Incorrect 117 ms 4452 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Incorrect 22 ms 596 KB Output isn't correct
4 Halted 0 ms 0 KB -