Submission #436674

#	Time	Username	Problem	Language	Result	Execution time	Memory
436674		PiejanVDC	Fountain Parks (IOI21_parks)	C++17	0 / 100	2 ms	332 KiB

parks

#include "parks.h"
#include <bits/stdc++.h>
using namespace std;

int construct_roads(vector<int>x, vector<int> y) {
    vector<pair<int,int>>z(y.size());
    for(int i = 0 ; i < y.size() ; i++) z[i].first=y[i],z[i].second=i;
    sort(z.begin(),z.end());
    for(int i = 1 ; i < y.size() ; i++) {
        if(z[i].first-z[i-1].first != 2) {
            return 0;
        }
    }
    vector<int>u(y.size()-1);
    vector<int>v(y.size()-1);
    vector<int>a(y.size()-1),b(y.size()-1);

    for(int i = 0 ; i < y.size()-2 ; i++) {
        u[i]=z[i].second;
        v[i]=z[i+1].second;
        a[i]=3;
        b[i]=z[i].first+1;
    }

    build(u,v,a,b);
    return 1;
}

Compilation message (stderr)

parks.cpp: In function 'int construct_roads(std::vector<int>, std::vector<int>)':
parks.cpp:7:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    7 |     for(int i = 0 ; i < y.size() ; i++) z[i].first=y[i],z[i].second=i;
      |                     ~~^~~~~~~~~~
parks.cpp:9:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    9 |     for(int i = 1 ; i < y.size() ; i++) {
      |                     ~~^~~~~~~~~~
parks.cpp:18:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   18 |     for(int i = 0 ; i < y.size()-2 ; i++) {
      |                     ~~^~~~~~~~~~~~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 10
• Subtask 3: 0 / 15
• Subtask 4: 0 / 20
• Subtask 5: 0 / 20
• Subtask 6: 0 / 30