Submission #438043

#	Time	Username	Problem	Language	Result	Execution time	Memory
438043		Bom164	Combo (IOI18_combo)	C++14	Compilation error	0 ms	0 KiB

combo

#include<bits/stdc++.h>
#include<iostream>

using namespace std;

#define ll              long long
#define pb              push_back
#define mp              make_pair
#define pii             pair<int,int>
#define vi              vector<int>
#define mii             map<int,int>
#define pqb             priority_queue<int>
#define pqs             priority_queue<int,vi,greater<int> >
#define mod             1000000007
#define inf             1e18
#define rep(x,s,e) for (auto x=s-(s>e);x!=e-(s>e);s<e?x++:x--)
#define w(x)            int x; cin>>x; while(x--)

string s="";

int press(string p){
    int a;cin>>a;
    return a;
}

string guess_sequence(int n){
    int cc=n;
    if(press("A")==1) s+="A";
    else if(press("B")==1) s+="B";
    else if(press("X")==1) s+="X";
    else s+="Y";
    int ss = s.size();
    if(s=="A"){
        while(ss!=cc){
            int c = press(s+"B"+s+"XB"+s+"XX"+s+"XY");
            if(c==ss) s+="Y";
            else if(c==ss+1) s+="B";
            else s+="X";
            ss=s.size();
        }
    }else if(s=="B"){
        while(ss!=cc){
            int c = press(s+"A"+s+"XA"+s+"XX"+s+"XY");
            if(c==ss) s+="Y";
            else if(c==ss+1) s+="A";
            else s+="X";
            ss=s.size();
        }
    }else if(s=="X"){
        while(ss!=cc){
            int c = press(s+"B"+s+"AB"+s+"AA"+s+"AY");
            if(c==ss) s+="Y";
            else if(c==ss+1) s+="B";
            else s+="A";
            ss=s.size();
        }
    }else if(s=="Y"){
        while(ss!=cc){
            int c = press(s+"B"+s+"XB"+s+"XX"+s+"XA");
            if(c==ss) s+="A";
            else if(c==ss+1) s+="B";
            else s+="X";
            ss=s.size();
        }
    }
    return s;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/cc3v78fm.o: in function `press(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)':
grader.cpp:(.text+0x0): multiple definition of `press(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)'; /tmp/ccMyhyWk.o:combo.cpp:(.text+0xc0): first defined here
collect2: error: ld returned 1 exit status