Submission #2710987

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Source Code Expand

#include <cstdio>
#include <cstring>
#include <string>
#include <iostream>
#include <vector>
#include <map>
#include <set>
#include <queue>
#include <deque>
#include <algorithm>
using namespace std;
typedef long long int ll;

int main()
{
	int n, a;
  scanf("%d %d", &n, &a);
  string k;
  cin>>k;
  int d=k.length();
  int b[100001];
  for(int i=1; i<=n; i++){
    scanf("%d", &b[i]);
  }
  int m, a1[100001];
  a1[0]=a;
  for(int i=1; i<=n; i++){
    a1[i]=b[a1[i-1]];
  }
  for(int i=n-1; i>=0; i--){
    if(a1[i]==a1[n]){
      i=m;
      break;
    }
  }
  if(d<=6){
    int k0=stoi(k);
    if(k0<=n){
      printf("%d\n", a1[k0]);
    }else{
      printf("%d\n", a1[m+(k0-m)%(n-m)]);
    }
    return 0;
  }
  int x=1;
  int kmod=0;
  for(int i=0; i<d; i++){
    kmod+=(x*(int)(k[d-1-i]-'0'));
    kmod%=(n-m);
    x*=10;
    x%=(n-m);
  }
  kmod=((kmod-m%(n-m)+n-m)%(n-m));
  printf("%d\n", a1[m+kmod]);
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:17:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d", &n, &a);
                         ^
./Main.cpp:23:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &b[i]);
                       ^

Judge Result