제출 #834490

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
834490	2023-08-22 14:54:59	Abrar_Al_Samit	분수 공원 (IOI21_parks)	C++17	15 / 100	585 ms	57880 KiB

parks

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#include <bits/stdc++.h>
#include "parks.h"
using namespace std;
const int nax = 200000;
vector<int>g[nax];
bool vis[nax];
int par[nax], sz[nax];
void trav(int v) {
    vis[v] = 1;
    for(int u : g[v]) if(!vis[u]) {
        trav(u);
    }
}
int find(int v) {
    return par[v] = (v==par[v]) ? v : find(par[v]);
}
void unite(int u, int v) {
    u = find(u), v = find(v);
    if(sz[u] < sz[v]) swap(u, v);
    sz[u] += sz[v];
    par[v] = u;
}
int construct_roads(vector<int> x, vector<int> y) {
    int n = x.size();
    map<pair<int,int>, int>ft;
    for(int i=0; i<n; ++i) {
        ft[{x[i], y[i]}] = i;
 
 
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컴파일 시 표준 에러 (stderr) 메시지

parks.cpp: In function 'int construct_roads(std::vector<int>, std::vector<int>)':
parks.cpp:68:25: warning: unused variable 'y0' [-Wunused-variable]
   68 |         int x0 = x[me], y0 = y[me], x1 = x[she], y1 = y[she];
      |                         ^~
parks.cpp:68:50: warning: unused variable 'y1' [-Wunused-variable]
   68 |         int x0 = x[me], y0 = y[me], x1 = x[she], y1 = y[she];
      |                                                  ^~
parks.cpp:87:46: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   87 |             if(!ben.count(make_pair(x0-1, y0 + y1 >> 1))) {
      |                                           ~~~^~~~
parks.cpp:88:31: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   88 |                 ben[{x0-1, y0 + y1 >> 1}] = 1;
      |                            ~~~^~~~
parks.cpp:90:32: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   90 |                 b.push_back(y0 + y1 >> 1);
      |                             ~~~^~~~
parks.cpp:92:49: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   92 |                 if(ben.count(make_pair(x0+1, y0 + y1 >> 1))) return 0;
      |                                              ~~~^~~~
parks.cpp:93:31: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   93 |                 ben[{x0+1, y0 + y1 >> 1}] = 1;
      |                            ~~~^~~~
parks.cpp:95:32: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   95 |                 b.push_back(y0 + y1 >> 1);
      |                             ~~~^~~~
parks.cpp:98:40: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   98 |             if(!ben.count(make_pair(x0 + x1 >> 1, y0 - 1))) {
      |                                     ~~~^~~~
parks.cpp:99:25: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   99 |                 ben[{x0 + x1 >> 1, y0 - 1}] = 1;
      |                      ~~~^~~~
parks.cpp:100:32: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  100 |                 a.push_back(x0 + x1 >> 1);
      |                             ~~~^~~~
parks.cpp:103:43: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  103 |                 if(ben.count(make_pair(x0 + x1 >> 1, y0 + 1))) return 0;
      |                                        ~~~^~~~
parks.cpp:104:25: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  104 |                 ben[{x0 + x1 >> 1, y0 + 1}] = 1;
      |                      ~~~^~~~
parks.cpp:105:32: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  105 |                 a.push_back(x0 + x1 >> 1);
      |                             ~~~^~~~

• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
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