Submission #534376

#	Time	Username	Problem	Language	Result	Execution time	Memory
534376		MrDeboo	Combo (IOI18_combo)	C++17	Compilation error	0 ms	0 KiB

combo

#include "combo.h"
#include <bits/stdc++.h>
// #define int long long
using namespace std;
std::string guess_sequence(int n) {
    srand(time(NULL));
    char f[]={'A','B','X','Y'};
    string s;
    bool bl=0;
    for(auto &i:f){
        string g;
        g+=i;
        if(press(g)!=0){bl=1;s+=i;break;}
        if(i=='X')break;
    }
    if(!bl)s+='Y';
    vector<char>ve;
    for(auto &i:f)if(i!=s[0])ve.push_back(i);
    vector<char>v=ve;
    while(s.size()!=n){
        bool bl=0;
        vector<bool>pick(3);
        map<char,bool>mp;
        for(int w=0;w<2;w++){
            int f=rand()%3;
            while(pick(f))f=rand()%3;
            pick[f]=1;
            if(press(s+v[w]+v[f])==i+1){
                s+=v[w];
                mp[v[f]]=1;
                bl=1;
                break;
            }
        }
        if(!bl)s+=v.back();
        vector<char>V;
        for(auto i:ve)if(!mp[i])V.push_back(i);
        ve=V;
    }
    return s;
  // std::string p = "";
  // for (int i = 0; i < 4 * N; ++i) {
  //   p += 'A';
  // }
  // int coins = press(p);
  // std::string S = "";
  // for (int i = 0; i < N; ++i) {
  //   S += 'A';
  // }
  // return S;
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:20:19: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   20 |     while(s.size()!=n){
      |           ~~~~~~~~^~~
combo.cpp:26:25: error: no match for call to '(std::vector<bool>) (int&)'
   26 |             while(pick(f))f=rand()%3;
      |                         ^
combo.cpp:28:36: error: 'i' was not declared in this scope
   28 |             if(press(s+v[w]+v[f])==i+1){
      |                                    ^