Submission #2498831

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Source Code Expand

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

int bst[6];
int jr[6];
char str[5005];
set<int> st;
int n, m;
int main(){
    scanf("%s", str);
    scanf("%d",&m);
    jr[0] = 1;
    for(int i=1;i<=5;i++){
        jr[i] = jr[i-1] * 27;
    }
    n = (int)strlen(str);
    for(int i=0;i<5;i++) bst[i] = jr[5] + 1;
    for(int i=0;i<n;i++){
        int val = 0;
        for(int j=0;j<5;j++){
            if(i+j >= n) break;
            val += jr[4-j] * ((str[i+j] - 'a') + 1);
            //printf("%d\n", val);
            for(int k=0;k<5;k++){
                if(bst[k] > val){
                    for(int l=3;l>=k;l--){
                        bst[l+1] = bst[l];
                    }
                    bst[k] = val;
                    break;
                }else if(bst[k] == val) break;
            }
        }
    }
    //for(int i=0;i<5;i++) printf("%d\n", bst[i]);
    for(int i=4;i>=0;i--){
        int target = (bst[m-1]%jr[i+1]) / jr[i];
        if(target != 0) printf("%c", target+'a'-1);
    }
    printf("\n");
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:10:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%s", str);
                     ^
./Main.cpp:11:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&m);
                   ^

Judge Result