| # | 제출 시각 | 아이디 | 문제 | 언어 | 결과 | 실행 시간 | 메모리 |
|---|---|---|---|---|---|---|---|
| 759950 | denniskim | Lokahian Relics (FXCUP4_lokahia) | C++17 | 0 ms | 0 KiB |
이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include <stdio.h>
#include <stdlib.h>
#include <memory.h>
#include "lokahia.h"
static void my_assert(int TF, const char* message){
if(!TF){ puts(message); exit(0); }
}
static int N, reach[202][202], call_cnt = 0;
int CollectRelics(int R1, int R2){
call_cnt++;
my_assert(call_cnt <= 300, "Wrong : Too Much Calls");
my_assert(0 <= R1 && 0 <= R2 && R1 < N && R2 < N && R1 != R2, "Wrong : Invalid Argument");
for(int i=0; i<N; i++){
if(reach[i][R1] && reach[i][R2]) return i;
}
return -1;
}
#include "lokahia.h"
#include <bits/stdc++.h>
using namespace std;
typedef int ll;
typedef __int128 lll;
typedef long double ld;
typedef pair<ll, ll> pll;
typedef pair<ld, ld> pld;
#define MAX 9223372036854775807LL
#define MIN -9223372036854775807LL
#define INF 0x3f3f3f3f3f3f3f3f
#define fi first
#define se second
#define fastio ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL); cout << fixed; cout.precision(10);
#define sp << " "
#define en << "\n"
#define compress(v) sort(v.begin(), v.end()), v.erase(unique(v.begin(), v.end()), v.end())
ll chk[210][210];
ll cou[210];
ll FindBase(ll N)
{
srand(time(NULL));
for(ll i = 0 ; i < 300 ; i++)
{
ll num1 = rand() % N, num2 = rand() % N;
ll coco = 0;
while(chk[num1][num2] || num1 == num2)
{
num1 = rand() % N;
num2 = rand() % N;
coco++;
if(coco >= 10000)
break;
}
if(coco >= 10000)
continue;
ll gap = CollectRelics(num1, num2);
chk[num1][num2] = chk[num2][num1] = 1;
if(gap != -1)
cou[gap]++;
}
ll maxx = 0, sum = 0, ans = 0;
for(ll i = 0 ; i < N ; i++)
{
if(cou[i] > maxx)
{
maxx = cou[i];
ans = i;
}
sum += cou[i];
}
if(sum - maxx * 2 <= 5)
return ans;
return -1;
}
int main(){
my_assert(scanf("%d", &N) == 1, "Error: Invalid Input");
my_assert(1 <= N && N <= 200, "Error: Invalid Input");
int con[202][202] = {0,};
for(int i = 1; i < N; i++){
int s, e, m;
my_assert(scanf("%d%d%d", &s, &e, &m) == 3, "Error: Invalid Input");
my_assert(0 <= s && s < N && 0 <= e && e < N && s != e && 1 <= m && m <= N, "Error: Invalid Input");
con[s][e] = con[e][s] = m;
}
int near[202];
for(int i = 0; i < N; i++){
memset(near, 0, sizeof(near));
reach[i][i] = 1, near[i] = -1;
for(int j = 0; j < N; j++){
if(con[i][j] > 0 && near[j] == 0) near[j] = con[i][j];
}
for(int vis = 1; vis < N; vis++){
int nxt = -1;
for(int j = 0; j < N; j++){
if(near[j] > 0 && near[j] <= vis){
nxt = j;
break;
}
}
if(nxt < 0) break;
reach[i][nxt] = 1, near[nxt] = -1;
for(int j = 0; j < N; j++){
if(con[nxt][j] > 0 && near[j] == 0) near[j] = con[nxt][j];
}
}
}
int base = FindBase(N);
if(base == -1){
for(int i = 0; i < N; i++){
int cnt = 0;
for(int j = 0; j < N; j++) cnt += reach[i][j];
my_assert(cnt <= N / 2, "Wrong: Wrong Answer");
}
}
else if(0 <= base && base < N){
int cnt = 0;
for(int j = 0; j < N; j++) cnt += reach[base][j];
my_assert(cnt > N / 2, "Wrong: Wrong Answer");
}
else my_assert(0, "Wrong: Wrong Answer");
printf("Correct\n%d\n", call_cnt);
return 0;
}