Submission #1368447

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Source Code Expand

#include<bits/stdc++.h>
using namespace std;
int n, x[100005];
char a[100005];
bool f;

int main()
{
	scanf("%d%s",&n,a+1);
	for(int i=1;i<=n;i++) {
		a[i] = (a[i] == 'x');
	}
	for(x[1] = 0; !f && x[1] < 2; x[1]++) for(x[2] = 0; !f && x[2] < 2; x[2]++) {
		for(int i=3;i<=n;i++) x[i] = a[i-1] ^ x[i-1] ^ x[i-2];
		if((x[n]^x[1]^x[2]) == a[1] && (x[n-1]^x[n]^x[1]) == a[n]) {
			for(int i=1;i<=n;i++) putchar(x[i] ? 'W' : 'S');
			f = true;
		}
	}
	if(!f) printf("-1");
	puts("");
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:9:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%s",&n,a+1);
                      ^

Judge Result