Submission #960989

#	Time	Username	Problem	Language	Result	Execution time	Memory
960989		aminjon__	Combo (IOI18_combo)	C++17	100 / 100	15 ms	2036 KiB

combo

#include<bits/stdc++.h>
using namespace std;
deque<char> button = {'A' , 'B', 'X' , 'Y'};
int press(string s);
string c;
int N;
int G = 0;
// int press(string a){s
	// G++;
	// int rrv = 0;
	// for(int i = 0;i < a.size();i++){
		// int cnt  = 0;
		// for(int j = i;j < a.size() && (j-i) < c.size();j++){
			// if(a[j] == c[j-i]){
				// cnt++;
				// rrv=max(rrv , cnt);
			// }
			// else{
				// break;
			// }
		// }
	// }
	// return rrv;
// }
string guess_sequence(int N){
	string ans;
	if(press("AB") > 0){
		if(press("A") > 0){
			ans = "A";
			button.erase(button.begin());
		}
		else{
			ans = "B";
			
			button.erase(button.begin()+1);
		}
	}
	else{
		if(press("X") > 0){
			ans = "X";
			button.erase(button.begin()+2);
		}
		else{
			ans = "Y";
			button.erase(button.begin()+3);
		}
	}
	if(N == 1){
		return ans;
	}
	
	for(int i = 2;i <= N-1;i++){
		int r = press(ans+button[1] + ans+button[2]+button[0]+ans+button[2]+button[1]+ans+button[2]+button[2] );
		ans += button[r - ans.size()];
	}
	if(press(ans+button[0]+ans+button[1]) > ans.size()){
		if(press(ans+button[0]) > ans.size()){
			ans += button[0];
		}
		else{
			ans += button[1];
		}
	}
	else{
		ans += button[2];
	}
	return ans;
	
}
// int main(){
	// cin >> N >> c;
	// cout<<guess_sequence(N);
// 	
	// return 0;
// }

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:56:40: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   56 |  if(press(ans+button[0]+ans+button[1]) > ans.size()){
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~
combo.cpp:57:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   57 |   if(press(ans+button[0]) > ans.size()){
      |      ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~

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