Submission #929993

#	Time	Username	Problem	Language	Result	Execution time	Memory
929993		sofiefu	Ancient Machine 2 (JOI23_ancient2)	C++17	Compilation error	0 ms	0 KiB

ancient2

#include <bits/stdc++.h>
#include "ancient2.h"
using namespace std;
typedef long long ll;

#define int long long
#define vo vector
#define fi first
#define se second
#define pr(x) cerr << #x << " " << x << endl;
#define sz(x) x.size()
typedef vo<int> vi;
typedef pair<int, int> pii; 

#define rep(i, a, b) for(ll i = (a); i<(b); i++)
ll const inf = LLONG_MAX, mxn = 51;

std::string Solve(int n){
    string ans;
    rep(i, 0, 1000){
        int ret = Query(2, {0, 0}, {1, 1});
        if(ret==0){
            ans.pb('0');
        }
        else{
            ans.pb('1');
        }
    }

    return ans;
}

Compilation message (stderr)

ancient2.cpp: In function 'std::string Solve(long long int)':
ancient2.cpp:23:17: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'pb'
   23 |             ans.pb('0');
      |                 ^~
ancient2.cpp:26:17: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'pb'
   26 |             ans.pb('1');
      |                 ^~