Submission #3751144

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Source Code Expand

#include<bits/stdc++.h>
#define fi first
#define se second
#define pb push_back
#define SZ(x) ((int)x.size())
#define L(i,u) for (register int i=head[u]; i; i=nxt[i])
#define rep(i,a,b) for (register int i=(a); i<=(b); i++)
#define per(i,a,b) for (register int i=(a); i>=(b); i--)
using namespace std;
typedef long long ll;
typedef unsigned int ui;
typedef pair<int,int> Pii;
typedef vector<int> Vi;
inline void read(int &x) {
	x=0; char c=getchar(); int f=1;
	while (!isdigit(c)) {if (c=='-') f=-1; c=getchar();}
	while (isdigit(c)) {x=x*10+c-'0'; c=getchar();} x*=f;
}
inline ui R() {
	static ui seed=416;
	return seed^=seed>>5,seed^=seed<<17,seed^=seed>>13;
}
const int N = 5555;
char s[N];int n,res=555;bool a[N];
int main() {
	scanf("%s",s+1);n=strlen(s+1);
	rep(c,0,25){
		rep(i,1,n)a[i]=s[i]=='a'+c;
		for(int t=0;t<n;t++){
			bool ok=1;rep(i,1,n-t)ok&=a[i];
			if(ok){res=min(res,t);break;}
			rep(i,1,n)a[i]|=a[i+1];
		}
	}
	cout<<res;
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:26:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%s",s+1);n=strlen(s+1);
                 ^

Judge Result