Submission #951189

#	Time	Username	Problem	Language	Result	Execution time	Memory
951189		Trisanu_Das	Fountain Parks (IOI21_parks)	C++17	5 / 100	51 ms	9908 KiB

parks

#include "parks.h"
#include<bits/stdc++.h>
 
using namespace std;
#define rep(i,a,b) for(int i=a;i<b;i++)
#define trav(a,v) for(auto a:v)
typedef long long int lld;
#define INF 1000000000000000LL
vector<pair<int,int> >V;
int construct_roads(std::vector<int> x, std::vector<int> y) {
	rep(i,0,y.size())V.push_back({y[i],i});
	sort(V.begin(),V.end());
    std::vector<int> u, v, a, b;
    rep(i,0,V.size()){
		if(i<V.size()-1 && V[i].first!=V[i+1].first-2){
			return 0;
		}
		if(i<V.size()-1){
			u.push_back(V[i].second);
			v.push_back(V[i+1].second);
			a.push_back(3);
			b.push_back(V[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:5:33: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    5 | #define rep(i,a,b) for(int i=a;i<b;i++)
......
   11 |  rep(i,0,y.size())V.push_back({y[i],i});
      |      ~~~~~~~~~~~~                
parks.cpp:11:2: note: in expansion of macro 'rep'
   11 |  rep(i,0,y.size())V.push_back({y[i],i});
      |  ^~~
parks.cpp:5:33: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    5 | #define rep(i,a,b) for(int i=a;i<b;i++)
......
   14 |     rep(i,0,V.size()){
      |         ~~~~~~~~~~~~             
parks.cpp:14:5: note: in expansion of macro 'rep'
   14 |     rep(i,0,V.size()){
      |     ^~~
parks.cpp:15:7: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   15 |   if(i<V.size()-1 && V[i].first!=V[i+1].first-2){
      |      ~^~~~~~~~~~~
parks.cpp:18:7: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   18 |   if(i<V.size()-1){
      |      ~^~~~~~~~~~~

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