Submission #2671844

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Source Code Expand

/*----------------by syr----------------*/
#include<algorithm>
#include<bitset>
#include<cctype>
#include<cstring>
#include<cstdlib>
#include<deque>
#include<fstream>
#include<functional>
#include<iomanip>
#include<iostream>
#include<limits>
#include<list>
#include<map>
#include<math.h>
#include<queue>
#include<set>
#include<stack>
#include<stdio.h>
#include<sstream>
#include<string>
#include<time.h>
#include<utility>
#include<vector>

using namespace std;

const int INF=1e9+7;

int n;
int a[100005];
char s[100005];

bool judge(int p){
	int l=p-1+n,r=p+1;
	l%=n;r%=n;
	if(a[p]==0){
		if(s[p]=='o'&&a[l]==a[r]) return true;
		else if(s[p]=='x'&&a[l]!=a[r]) return true;
	}else{
		if(s[p]=='o'&&a[l]!=a[r]) return true;
		else if(s[p]=='x'&&a[l]==a[r]) return true;
	}
	return false;
}

void arrange(){
	for(int i=1;i<n-1;i++){
		int l=i-1,r=i+1;
		if(a[i]==0){
			if(s[i]=='o') a[r]=a[l];
			else a[r]=a[l]^1;
		}else{
			if(s[i]=='o') a[r]=a[l]^1;
			else a[r]=a[l];
		}
	}
	if(judge(0)&&judge(n-1)){
		for(int i=0;i<n;i++){
			if(a[i]==0) printf("S");
			else printf("W");
		}
		puts("");
		exit(0);
	}
}

int main(){
	scanf("%d",&n);
	scanf("%s",s);
	for(int i=0;i<2;i++){
		for(int j=0;j<2;j++){
			memset(a,-1,sizeof(a));
			a[0]=i,a[1]=j;
			arrange();
		}
	}
	puts("-1");
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:69:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
                ^
./Main.cpp:70:15: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%s",s);
               ^

Judge Result