Submission #1368650

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Source Code Expand

#include <stdio.h>

int main(void) {
	int N;
	char *s, *ans;
	int cnt_1 = 1, cnt_2 = 1, i, cnt_c = 0;
	
	scanf("%d", &N);
	s = (char*)malloc(sizeof(char)*(N + 1));
	ans = (char*)malloc(sizeof(char)*(N + 2));
	scanf("%s", s);

	while (cnt_c < 4) {
		if (cnt_1 == 1) {
			ans[0] = 'S';
			if (cnt_2 == 1) {
				ans[1] = 'S';
				cnt_2++;
			}
			else ans[1] = 'W';
		}
		else {
			ans[0] = 'W';
			if (cnt_2 == 1) {
				ans[1] = 'S';
				cnt_2++;
			}
			else ans[1] = 'W';
		}
		for (i = 2; i <= N; i++) {
			if (ans[i - 1] == 'S') {
				if (s[i - 1] == 'o') ans[i] = ans[i - 2];
				else if (ans[i - 2] == 'S') ans[i] = 'W';
				else ans[i] = 'S';
			}
			else {
				if (s[i - 1] == 'x') ans[i] == ans[i - 2];
				else if (ans[i - 2] == 'S') ans[i] = 'W';
				else ans[i] = 'S';
			}
		}
		if (ans[0] == ans[N]) break;
		else {
			for (i = 0; i <= N; i++) ans[i] = '0';
			cnt_c++;
		}
		if ((cnt_1 == 1) && (cnt_2 != 1)) {
			cnt_1++;
			cnt_2 = 1;
		}
	}

	if (cnt_c == 4) printf("-1");
	else for (i = 0; i < N; i++) printf("%c", ans[i]);
	printf("\n");

	return 0;
}

Submission Info

Compile Error

./Main.c: In function ‘main’:
./Main.c:9:13: warning: implicit declaration of function ‘malloc’ [-Wimplicit-function-declaration]
  s = (char*)malloc(sizeof(char)*(N + 1));
             ^
./Main.c:9:13: warning: incompatible implicit declaration of built-in function ‘malloc’
./Main.c:9:13: note: include ‘<stdlib.h>’ or provide a declaration of ‘malloc’
./Main.c:8:2: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &N);
  ^
./Main.c:11:2: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%s", s);
  ^

Judge Result