Submission #1251513

#	Time	Username	Problem	Language	Result	Execution time	Memory
1251513		chr34	Triple Peaks (IOI25_triples)	C++20	Compilation error	0 ms	0 KiB

triples

#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);  
	int subtask; cin >> subtask;
	int n; cin >> n;
	vector<int> h(n);
	for(int i = 0; i < n; ++i) cin >> h[i];
	cout<<count_triples(h);
    return 0;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccoAKTbW.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/cc3FDre6.o:triples.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccoAKTbW.o: in function `main':
grader.cpp:(.text.startup+0x18a): undefined reference to `construct_range(int, int)'
/usr/bin/ld: grader.cpp:(.text.startup+0x37b): undefined reference to `count_triples(std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status