Submission #1050475

#	Time	Username	Problem	Language	Result	Execution time	Memory
1050475		MercubytheFirst	Comparing Plants (IOI20_plants)	C++17	Compilation error	0 ms	0 KiB

plants

#include <bits/stdc++.h>
#include "plants.h"
template<typename T, size_t N>
std::ostream& operator<<(std::ostream& os, const std::array<T, N>& a);
template<typename T>
std::ostream& operator<<(std::ostream& os, const std::vector<T>& v);
template<typename T1, typename T2>
std::ostream& operator<<(std::ostream& os, const std::pair<T1, T2>& p);
template<typename T>
std::ostream& operator<<(std::ostream& os, const std::set<T>& s);
template<typename T, typename cmp>
std::ostream& operator<<(std::ostream& os, const std::set<T, cmp>& s);
using namespace std;
	
void init(int k, std::vector<int> r) {

}
	
int compare_plants(int x, int y) {
	int x = rand() % 2;
	return 2*x - 1;
}
	
	
	
template<typename T, size_t N>
std::ostream& operator<<(std::ostream& os, const std::array<T, N>& a) {
	os << "[";
	for(size_t i = 0; i + 1 < N; ++i) {
		os << a[i] << ", ";
	}
	if(N > 0)
		os << a[N - 1];
	os << "]";
	return os;
}
	
template<typename T1, typename T2>
std::ostream& operator<<(std::ostream& os, const std::pair<T1, T2>& p) {
	os << "(" << p.first << ", " << p.second << ") ";
	return os;
}
	
template<typename T>
std::ostream& operator<<(std::ostream& os, const std::vector<T>& v) {
	os << '[';
	for(auto x : v)
		os << x << ", ";
	os << "] ";
	return os;
}
	
template<typename T>
std::ostream& operator<<(std::ostream& os, const std::set<T>& s) {
	os << "{";
	for(auto x : s)
		os << x << ", ";
	os << "} ";
	return os;
}
//
template<typename T, typename cmp>
std::ostream& operator<<(std::ostream& os, const std::set<T, cmp>& s) {
	os << "{";
	for(auto x : s)
		os << x << ", ";
	os << "} ";
	return os;
}
	
	
/*
7 4 5
1 0 0 0 1 2 3
0 1
0 2
0 3
3 4
4 5

4 2 2
0 1 0 1

7 2 5
1 0 0 0 0 0 1
*/

Compilation message (stderr)

plants.cpp: In function 'int compare_plants(int, int)':
plants.cpp:20:6: error: declaration of 'int x' shadows a parameter
   20 |  int x = rand() % 2;
      |      ^
plants.cpp:19:24: note: 'int x' previously declared here
   19 | int compare_plants(int x, int y) {
      |                    ~~~~^