제출 #97123

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
97123		maruii	Snowy Roads (JOI16_snowy)	C++17	컴파일 에러	0 ms	0 KiB

Anya

#include "Borislib.h"
#include <bits/stdc++.h>
using namespace std;
#define ff first
#define ss second
vector<int> edge[500];
int A[500], B[500], prt[500];
static int getL;
void dfs(int x){
	for(auto &i: edge[x]){
		if(prt[x]==i) continue;
		prt[i] = x;
		dfs(i);
	}
}
void InitBoris(int N , int AA[] , int BB[]) {
	for(int i=0; i<N; ++i) edge[i].clear();
	for(int i=0; i<N; ++i){
		A[i] = AA[i], B[i] = BB[i];
		edge[A[i]].push_back(B[i]);
		edge[B[i]].push_back(A[i]);
	}
	for(int i=0; i<N; ++i) sort(edge[i].begin(), edge[i].end());
	dfs(0);
}

int Boris(int city) {
	int ret = 0;
	while(city) ret += Ask(city), city = prt[city];
	return Ask(city);
}

Boris

#include "Borislib.h"
#include <bits/stdc++.h>
using namespace std;
#define ff first
#define ss second
vector<int> edge[500];
int A[500], B[500], prt[500];
static int getL;
void dfs(int x){
	for(auto &i: edge[x]){
		if(prt[x]==i) continue;
		prt[i] = x;
		dfs(i);
	}
}
void InitBoris(int N , int AA[] , int BB[]) {
	for(int i=0; i<N; ++i) edge[i].clear();
	for(int i=0; i<N; ++i){
		A[i] = AA[i], B[i] = BB[i];
		edge[A[i]].push_back(B[i]);
		edge[B[i]].push_back(A[i]);
	}
	for(int i=0; i<N; ++i) sort(edge[i].begin(), edge[i].end());
	dfs(0);
}

int Boris(int city) {
	int ret = 0;
	while(city) ret += Ask(city), city = prt[city];
	return Ask(city);
}

컴파일 시 표준 에러 (stderr) 메시지

Anya.cpp:8:12: warning: 'getL' defined but not used [-Wunused-variable]
 static int getL;
            ^~~~
/tmp/cc3HqmWb.o: In function `Boris(int)':
Anya.cpp:(.text+0xa3): undefined reference to `Ask(int)'
Anya.cpp:(.text+0xb7): undefined reference to `Ask(int)'
/tmp/cct4lFvU.o: In function `main':
grader_anya.cpp:(.text.startup+0xc5): undefined reference to `InitAnya(int, int*, int*)'
grader_anya.cpp:(.text.startup+0x196): undefined reference to `Anya(int*)'
collect2: error: ld returned 1 exit status

Boris.cpp:8:12: warning: 'getL' defined but not used [-Wunused-variable]
 static int getL;
            ^~~~