Submission #523113

#	Time	Username	Problem	Language	Result	Execution time	Memory
523113		tmn2005	Combo (IOI18_combo)	C++17	5 / 100	1 ms	200 KiB

combo

#include "combo.h"
#ifndef EVAL
#include "grader.cpp"
#endif

std::string guess_sequence(int N) {
	std::string p = "";
  
	if(press("A")){
		p += 'A';
		for(int i=1; i<N; i++){
			if(press(p+'B') == i+1){
				p += 'B';
			}
			else if(press(p+'X') == i+1){
				p += 'X';
			}
			else if(press(p+'Y') == i+1){
				p += 'Y';
			}
		}
	}
	if(press("B")){
		p += 'B';
		for(int i=1; i<N; i++){
			if(press(p+'A') == i+1){
				p += 'A';
			}
			else if(press(p+'X') == i+1){
				p += 'X';
			}
			else if(press(p+'Y') == i+1){
				p += 'Y';
			}
		}
	}
	if(press("X")){
		p += 'X';
		for(int i=1; i<N*4; i++){
			if(press(p+'B') == i+1){
				p += 'B';
			}
			else if(press(p+'A') == i+1){
				p += 'A';
			}
			else if(press(p+'Y') == i+1){
				p += 'Y';
			}
		}
	}
	if(press("Y")){
		p += 'Y';
		for(int i=1; i<N; i++){
			if(press(p+'B') == i+1){
				p += 'B';
			}
			else if(press(p+'X') == i+1){
				p += 'X';
			}
			else if(press(p+'A') == i+1){
				p += 'A';
			}
		}
	}
	
	int coins = press(p);
	return p;
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:66:6: warning: unused variable 'coins' [-Wunused-variable]
   66 |  int coins = press(p);
      |      ^~~~~

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