제출 #403439

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
403439		InternetPerson10	Combo (IOI18_combo)	C++14	컴파일 에러	0 ms	0 KiB

combo

#include "combo.h"
#include <string>


using namespace std;

string guess_sequence(int N) {
	vector<string> c;
	c.push_back("A");
	c.push_back("B");
	c.push_back("X");
	c.push_back("Y");
	string s, ss;
    int co, a, b, d;
    a = b = d = 1;
    s = c[0] + c[1];
    co = press(s);
    if(co > 0) {
    	co = press(c[0]); 
    	if(co > 0) s = c[0];
    	else s = c[1];
    }
    else {
    	co = press(c[2]);
    	if(co > 0) s = c[2];
    	else s = c[3];
    }
    for(int i = 0; i < 4; i++) {
    	if(s == c[i]) {
    		a = (i+1)%4;
    		b = (i+2)%4;
    		d = (i+3)%4;
    	}
    }
    for(int i = 1; i < N-1; i++) {
    	string s1 = s + c[a] + c[a];
    	string s2 = s + c[a] + c[b];
    	string s3 = s + c[a] + c[d];
    	string s4 = s + c[b];
    	ss = s1 + s2 + s3 + s4;
    	co = press(ss);
    	if(co == i+2) s = s + c[a];
    	else if(co == i+1) s = s + c[b];
    	else s = s + c[d];
    }
    ss = s + c[a];
    co = press(ss);
    if(co == N) s = s + c[a];
    else {
    	ss = s + c[b];
    	co = press(ss);
    	if(co == N) s = s + c[b];
    	else s = s + c[d];
    }
    return s;
}

컴파일 시 표준 에러 (stderr) 메시지

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:8:2: error: 'vector' was not declared in this scope
    8 |  vector<string> c;
      |  ^~~~~~
combo.cpp:2:1: note: 'std::vector' is defined in header '<vector>'; did you forget to '#include <vector>'?
    1 | #include "combo.h"
  +++ |+#include <vector>
    2 | #include <string>
combo.cpp:8:15: error: expected primary-expression before '>' token
    8 |  vector<string> c;
      |               ^
combo.cpp:8:17: error: 'c' was not declared in this scope
    8 |  vector<string> c;
      |                 ^