Submission #97124

#	Time	Username	Problem	Language	Result	Execution time	Memory
97124		maruii	Snowy Roads (JOI16_snowy)	C++14	0 / 100	5 ms	1112 KiB

Anya

#include "Anyalib.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 InitAnya(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);
}
void Anya(int C[]) {
	for(int i=0; i<1000; ++i) Save(prt[A[i]]==B[i]?A[i]:B[i], C[i]);
}

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);
}

Compilation message (stderr)

Anya.cpp:8:12: warning: 'getL' defined but not used [-Wunused-variable]
 static int getL;
            ^~~~
Anya.cpp: In function 'void Anya(int*)':
Anya.cpp:27:40: warning: iteration 500 invokes undefined behavior [-Waggressive-loop-optimizations]
  for(int i=0; i<1000; ++i) Save(prt[A[i]]==B[i]?A[i]:B[i], C[i]);
                                     ~~~^
Anya.cpp:27:16: note: within this loop
  for(int i=0; i<1000; ++i) Save(prt[A[i]]==B[i]?A[i]:B[i], C[i]);
               ~^~~~~

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

• Subtask 1: 0 / 15
• Subtask 2: 0 / 5
• Subtask 3: 0 / 35
• Subtask 4: 0 / 45