Submission #849477

#	Time	Username	Problem	Language	Result	Execution time	Memory
849477		Bach21	Combo (IOI18_combo)	C++14	Compilation error	0 ms	0 KiB

combo

#include <bits/stdc++.h>
#include "combo.h"
using namespace std;
#define int long long
const int m=4;
string gue="ABXY";
string guess_sequence(int N) {
    int len[N];
    string s="";
    string tmp="";
    int cnt=0;
    for (int i=0;i<N;i++) {
        for (int trie = 0; trie < gue.size(); trie++) {
            tmp = s;
            tmp += gue[trie];
            cnt = press(tmp);
            if (cnt > s.size()) {
                s+=gue[trie];
                if (i==0) gue.erase(gue.begin()+trie);
                break;
            }
        }
    }
    return s;
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(long long int)':
combo.cpp:13:33: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |         for (int trie = 0; trie < gue.size(); trie++) {
      |                            ~~~~~^~~~~~~~~~~~
combo.cpp:17:21: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |             if (cnt > s.size()) {
      |                 ~~~~^~~~~~~~~~
combo.cpp:8:9: warning: unused variable 'len' [-Wunused-variable]
    8 |     int len[N];
      |         ^~~
/usr/bin/ld: /tmp/ccEDjm4F.o: in function `main':
grader.cpp:(.text.startup+0x4c): undefined reference to `guess_sequence[abi:cxx11](int)'
collect2: error: ld returned 1 exit status