Submission #1368437

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;

int n;
int arr[100100];
int res[100100];
char str[100100];

bool test() {
    int i;
    for (i=1;i<=n;i++) arr[i+1] = arr[i]^res[i]^arr[i-1];
    return (arr[0]==arr[n])&&(arr[1]==arr[n+1]);
}

void print() {
    int i;
    for (i=0;i<n;i++) printf("%c",((arr[i])?'W':'S'));
    exit(0);
}

int main() {
    int i, j;
    scanf("%d",&n);
    scanf("%s",str);
    for (i=0;i<=n;i++) res[i] = (str[i%n]=='x');

    for (i=0;i<2;i++) for (j=0;j<2;j++) {
        arr[0] = i;
        arr[1] = j;
        if (test()) print();
    }
    printf("-1\n");

    return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:23:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&n);
                   ^
./Main.cpp:24:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%s",str);
                    ^

Judge Result