Submission #823880

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
823880	2023-08-13T09:25:08 Z	rainboy	Flip it and Stick it (CCO23_day2problem1)	C	8 / 25	4 ms	656 KB

Main

#include <stdio.h>
#include <string.h>

#define N	200000

int main() {
	static char aa[N + 1], bb[4];
	int n, m, k, i, d;

	scanf("%s%s", aa, bb), n = strlen(aa), m = strlen(bb);
	if (m == 1) {
		for (i = 0; i < n; i++)
			if (aa[i] == bb[0]) {
				printf("-1\n");
				return 0;
			}
		printf("0\n");
	} else if (m == 2) {
		if (bb[0] != bb[1]) {
			k = 0;
			for (i = -1; i < n; i++)
				if ((i < 0 ? bb[1] : aa[i]) != (i + 1 == n ? bb[0] : aa[i + 1]))
					k++;
			printf("%d\n", k / 2);
		} else {
			k = 0;
			for (i = -1; i < n; i++)
				if (aa[i] == bb[0] && aa[i + 1] == bb[0])
					k++;
			d = 0;
			for (i = 0; i < n; i++)
				d += aa[i] == bb[0] ? 1 : -1;
			printf("%d\n", d > 1 ? -1 : k);
		}
	}
	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("%s%s", aa, bb), n = strlen(aa), m = strlen(bb);
      |  ^~~~~~~~~~~~~~~~~~~~~

Subtask #1
1.0 / 1.0

#	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	1 ms	468 KB	Output is correct
4	Correct	1 ms	468 KB	Output is correct
5	Correct	1 ms	468 KB	Output is correct
6	Correct	1 ms	468 KB	Output is correct
7	Correct	1 ms	468 KB	Output is correct

Subtask #2
3.0 / 3.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	1 ms	468 KB	Output is correct
7	Correct	1 ms	468 KB	Output is correct
8	Correct	1 ms	468 KB	Output is correct
9	Correct	2 ms	468 KB	Output is correct
10	Correct	2 ms	468 KB	Output is correct

Subtask #3
4.0 / 4.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	1 ms	468 KB	Output is correct
7	Correct	1 ms	468 KB	Output is correct
8	Correct	1 ms	468 KB	Output is correct
9	Correct	2 ms	468 KB	Output is correct
10	Correct	2 ms	468 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	1 ms	304 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	1 ms	212 KB	Output is correct
20	Correct	1 ms	596 KB	Output is correct
21	Correct	1 ms	596 KB	Output is correct
22	Correct	2 ms	596 KB	Output is correct
23	Correct	2 ms	536 KB	Output is correct
24	Correct	2 ms	552 KB	Output is correct
25	Correct	0 ms	284 KB	Output is correct
26	Correct	2 ms	656 KB	Output is correct
27	Correct	3 ms	596 KB	Output is correct
28	Correct	2 ms	596 KB	Output is correct
29	Correct	1 ms	596 KB	Output is correct
30	Correct	3 ms	504 KB	Output is correct
31	Correct	4 ms	596 KB	Output is correct
32	Correct	3 ms	596 KB	Output is correct
33	Correct	0 ms	212 KB	Output is correct
34	Correct	0 ms	212 KB	Output is correct