oj.uz

답안 #889939

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
889939 2023-12-20T10:05:28 Z abcvuitunggio 도시들 (IOI15_towns) C++17
25 / 100
 12 ms 536 KB 
#include "towns.h"
#include <bits/stdc++.h>
using namespace std;
int dist[111][111],C[111];
int d(int u, int v){
    if (u==v)
        return 0;
    if (u>v)
        swap(u,v);
    if (dist[u][v])
        return dist[u][v];
    return dist[u][v]=getDistance(u,v);
}
int hubDistance(int N, int sub){
    memset(dist,0,sizeof(dist));
    pair <int, int> mx={0,-1};
    for (int i=0;i<N;i++)
        mx=max(mx,{d(0,i),i});
    int u=mx.second;
    mx={0,-1};
    for (int i=0;i<N;i++)
        mx=max(mx,{d(u,i),i});
    int v=mx.second;
	int R=1e9,cnt[2]={0,0};
	for (int i=0;i<N;i++)
        R=min(R,abs(d(i,u)-d(i,v)));
    R=(R+d(u,v))/2;
    vector <int> a,b,tmp;
    for (int i=0;i<N;i++){
        int val=d(i,u)-d(i,v);
        if (val<-R)
            cnt[0]++;
        if (val==-R)
            a.push_back(i);
        if (val==R)
            b.push_back(i);
        if (val>R)
            cnt[1]++;
    }
    if (max(cnt[0],cnt[1])>N/2)
        return -R;
    if (sub==4)
        return (max(a.size(),b.size())>N/2?-R:R);
    return R;
}

Compilation message

towns.cpp: In function 'int hubDistance(int, int)':
towns.cpp:43:39: warning: comparison of integer expressions of different signedness: 'const long unsigned int' and 'int' [-Wsign-compare]
   43 |         return (max(a.size(),b.size())>N/2?-R:R);
      |                 ~~~~~~~~~~~~~~~~~~~~~~^~~~

Subtask #1
13.0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 11 ms 344 KB Output is correct
2 Correct 9 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 11 ms 348 KB Output is correct
5 Correct 11 ms 536 KB Output is correct

Subtask #2
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 10 ms 344 KB Output is correct
2 Correct 8 ms 348 KB Output is correct
3 Correct 12 ms 348 KB Output is correct
4 Correct 11 ms 532 KB Output is correct

Subtask #3
0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 8 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 10 ms 344 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 8 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 39.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 9 ms 500 KB Output isn't correct
2 Halted 0 ms 0 KB -