Submission #2499749

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Source Code Expand

#include <cstdio>
#include <cstring>
#include <iostream>
#include <algorithm>
#define LL long long
using namespace std;
inline int read(){
	int ret=0,p=1;
	char ch=getchar();
	while (ch<'0' || ch>'9'){if (ch=='-') p=-1;ch=getchar();}
	while (ch>='0' && ch<='9') ret=ret*10+ch-'0',ch=getchar();
	return ret*p;
}
int n;
char a[5000+3];
int s[100000+3];
void print(int l){
	int ans[10],m=0;
	while (l){
		ans[++m]=l%27;l/=27;
	}
	for (int i=m;i;i--){
		if (ans[i]!=0) printf("%c",ans[i]+'a'-1);
	}
	puts("");
}
int main(){
	scanf("%s",a);
	n=read();
	int t=0;
	int l=1;
	for (int j=1;j<=n;j++) l*=27;
	for (int i=0;i<strlen(a);i++){
		int p=0,q=l;
		for (int j=0;j<n;j++){
			if (i+j>=strlen(a)) break;
			p=p*27+a[i+j]-'a'+1;
			q/=27;
			s[++t]=p*q;
		}
	}
	sort(s+1,s+t+1);
	l=0;
	for (int i=1;i<=t;i++){
		if (s[i]!=s[i-1]) l++;
		if (l==n){l=i;break;}
	}
	print(s[l]);
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:28:15: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%s",a);
               ^

Judge Result