Submission #33618240

---

Source Code Expand

#include<bits/stdc++.h>
#define LL long long
#define pb push_back
#define SZ(x) ((int)x.size()-1)
#define ms(a,b) memset(a,b,sizeof a)
#define F(i,a,b) for (int i=(a);i<=(b);++i)
#define DF(i,a,b) for (int i=(a);i>=(b);--i)
//#define mp make_pair
//#define OO(x) fixed<<setprecision(x)
using namespace std;
//mt19937 rnd(chrono::steady_clock::now().time_since_epoch().count());
inline int read(){
	char ch=getchar(); int w=1,c=0;
	for(;!isdigit(ch);ch=getchar()) if (ch=='-') w=-1;
	for(;isdigit(ch);ch=getchar()) c=(c<<1)+(c<<3)+(ch^48);
	return w*c;
}
const int M=1e6+10;
int n;
char s[M];
bool g[M][2][2];
int main(){
//	freopen(".in","r",stdin);
//	freopen(".out","w",stdout);
	n=read();
	scanf("%s",s+1);
	if (n==2){
		if (s[1]==s[2]){
			puts("Yes");
		}
		else puts("No");
		return 0;
	}
	if (s[1]=='B'){
		puts("Yes");
		return 0;
	}
	if (s[n]=='B'){
		puts("No");
		return 0;
	}
	cout<<"Yes\n";
	return 0;
}
/* stuff you should look for
	* int overflow, array bounds
	* special cases (n=1?)
	* do smth instead of nothing and stay organized
	* WRITE STUFF DOWN
	* DON'T GET STUCK ON ONE APPROACH
*/

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:26:7: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   26 |  scanf("%s",s+1);
      |  ~~~~~^~~~~~~~~~

Judge Result