Submission #3033512


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

#define NDEBUG
#ifdef DEBUG
#include "../cout11.h"
#undef NDEBUG
#endif
#include <cassert>

typedef long long ll;
typedef long double Double;
typedef unsigned long long ull;
typedef pair<int,int> ii;
typedef pair<ll,ll> llll;
typedef pair<double,double> dd;

typedef vector<int> vi;
typedef vector<vector<int>> vvi;
typedef vector<ii> vii;
typedef vector<vector<ii>> vvii;
typedef vector<ll> vll;
typedef vector<string> vs;
typedef vector<double> vd;
typedef vector<long double> vD;

#define sz(a)  int((a).size())
#define pb  push_back
#define FOR(var,from,to) for(int var=(from);var<=(to);++var)
#define rep(var,n)  for(int var=0;var<(n);++var)
#define rep1(var,n)  for(int var=1;var<=(n);++var)
#define repC2(vari,varj,n)  for(int vari=0;vari<(n)-1;++vari)for(int varj=vari+1;varj<(n);++varj)
#define ALL(c)  (c).begin(),(c).end()
#define RALL(c)  (c).rbegin(),(c).rend()
#define tr(i,c)  for(auto i=(c).begin(); i!=(c).end(); ++i)
#define found(s,e)  ((s).find(e)!=(s).end())
#define mset(arr,val)  memset(arr,val,sizeof(arr))
#define mid(x,y) ((x)+((y)-(x))/2)
#define IN(x,a,b) ((a)<=(x)&&(x)<=(b))
#define cons make_pair



char solve(string& s, ll k) {
    --k;
    int L = s.size();
    ll base = 0;
    for (int i=0; i<L; ++i) {
        if (s[i] == '1') {
            if (base == k) return '1';
            base += 1;
        } else {
            // base += x ^ 5000兆
            return s[i];
        }
    }
    return '?';
}

int main() {
    string s; cin >> s;
    ll k; cin >> k;
    cout << solve(s,k) << endl;
    return 0;
}

Submission Info

Submission Time
Task C - To Infinity
User naoya_t
Language C++14 (GCC 5.4.1)
Score 300
Code Size 1657 Byte
Status
Exec Time 1 ms
Memory 256 KB

Test Cases

Set Name Score / Max Score Test Cases
Sample 0 / 0 s1.txt, s2.txt, s3.txt
All 300 / 300 in01.txt, in02.txt, in03.txt, in04.txt, in05.txt, in06.txt, in07.txt, in08.txt, in09.txt, in10.txt, in11.txt, in12.txt, in13.txt, s1.txt, s2.txt, s3.txt
Case Name Status Exec Time Memory
in01.txt 1 ms 256 KB
in02.txt 1 ms 256 KB
in03.txt 1 ms 256 KB
in04.txt 1 ms 256 KB
in05.txt 1 ms 256 KB
in06.txt 1 ms 256 KB
in07.txt 1 ms 256 KB
in08.txt 1 ms 256 KB
in09.txt 1 ms 256 KB
in10.txt 1 ms 256 KB
in11.txt 1 ms 256 KB
in12.txt 1 ms 256 KB
in13.txt 1 ms 256 KB
s1.txt 1 ms 256 KB
s2.txt 1 ms 256 KB
s3.txt 1 ms 256 KB