Submission #471568

#	Time	Username	Problem	Language	Result	Execution time	Memory
471568		Cross_Ratio	Combo (IOI18_combo)	C++14	0 / 100	0 ms	200 KiB

combo

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


//int press(string);

string guess_sequence(int N) {
    int isA = press("A");
    int isB = press("B");
    int isC = press("C");
    int isD = press("D");
    string st;
    if(isA) st = "A";
    if(isB) st = "B";
    if(isC) st = "C";
    if(isD) st = "D";
    while(st.length() < N) {
        string s1 = st + "A";
        string s2 = st + "B";
        string s3 = st + "C";
        string s4 = st + "D";
        if(press(s1) == s1.length()) st = s1;
        if(press(s2) == s2.length()) st = s2;
        if(press(s3) == s3.length()) st = s3;
        if(press(s4) == s4.length()) st = s4;
    }
    return st;
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:18:23: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   18 |     while(st.length() < N) {
      |           ~~~~~~~~~~~~^~~
combo.cpp:23:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   23 |         if(press(s1) == s1.length()) st = s1;
      |            ~~~~~~~~~~^~~~~~~~~~~~~~
combo.cpp:24:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |         if(press(s2) == s2.length()) st = s2;
      |            ~~~~~~~~~~^~~~~~~~~~~~~~
combo.cpp:25:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 |         if(press(s3) == s3.length()) st = s3;
      |            ~~~~~~~~~~^~~~~~~~~~~~~~
combo.cpp:26:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |         if(press(s4) == s4.length()) st = s4;
      |            ~~~~~~~~~~^~~~~~~~~~~~~~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 95