Submission #1251519

#	Time	Username	Problem	Language	Result	Execution time	Memory
1251519		chr34	Triple Peaks (IOI25_triples)	C++20	Compilation error	0 ms	0 KiB

triples

#include "triples.h"
#include <bits/stdc++.h>

using namespace std;

#define int long long
#define endl "\n"
#define dbg(x) cout << #x << " = " << (x) << endl;
const int INF = 1e18;
const int MAXN = 1e6 + 10;
const int MOD = 1e9 + 7;

bool check(vector<int> first, vector<int> second){
	sort(first.begin(), first.end());
	sort(second.begin(), second.end());
	for(int i = 0; i < 3; ++i){
		if(first[i] != second[i]) return false;
	}
	return true;
}

int count_triples(vector<int> h){
	//int n = h.size();
	int ans = 0;
	for(int i = 0; i < n; ++i){
		for(int j = i + 1; j < n; ++j){
			for(int k = j + 1; k < n; ++k){
				vector<int> first = {j - i, k - j, k - i};
				vector<int> second = {h[i], h[j], h[k]};
				if(check(first, second)) ans++;
			}
		}
	}
	
	return ans;
}

/*int32_t main(){
	ios::sync_with_stdio(false);
	cin.tie(nullptr);
	//freopen("input.in", "r", stdin);
	//freopen("input.out", "w", stdout);  
	
    return 0;
}*/

Compilation message (stderr)

triples.cpp: In function 'long long int count_triples(std::vector<long long int>)':
triples.cpp:25:28: error: 'n' was not declared in this scope
   25 |         for(int i = 0; i < n; ++i){
      |                            ^