Submission #844496

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Source Code Expand

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

typedef long long ll;
typedef long long LL;
typedef pair<int,int> ii;
typedef vector<ii> vii;
typedef vector<int> vi;

#ifdef DEBUG
    #define cek(x) cout<<x
#else
    #define cek(x) if(false){}
#endif // DEBUG

#define fi first
#define se second
#define INF 1000000000
#define INFLL 1000000000000000000LL
#define EPS 1e-9
#define PI acos(-1.0)
#define pb push_back
#define TC() while(tc--)
#define FOR(i,n) for(int i=0;i<n;i++)
#define FORN(i,n) for(int i=0;i<=n;i++)
#define REP(i,a,b) for(int i=a;i<b;i++)
#define REPN(i,a,b) for(int i=a;i<=b;i++)
#define reset(a,b) memset(a,b,sizeof(a))
#define sc(x) scanf("%d",&x)

int main(void){
    #ifdef ccsnoopy
        freopen("D:/Code/in.txt","r",stdin);
    #endif

    char str[1010];
    scanf("%s", str);
    int len = strlen(str);
    bool visited[4];
    reset(visited, false);
    FOR(i,len){
        if(str[i] == 'N')visited[0] = true;
        else if(str[i] == 'S') visited[1] = true;
        else if(str[i] == 'E') visited[2] = true;
        else if(str[i] == 'W')visited[3] = true;
    }

    if((visited[0]^visited[1])||(visited[2]^visited[3])){
        cout << "No";
    }else cout <<"Yes";


    return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:37:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%s", str);
                     ^

Judge Result