Submission #1249976

#	Time	Username	Problem	Language	Result	Execution time	Memory
1249976		s4dz	Triple Peaks (IOI25_triples)	C++20	Compilation error	0 ms	0 KiB

triples

#include <bits/stdc++.h>

using namespace std;
/*
    Author: s4dz
*/
#define fastio ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
using ll = long long;
using ld = long double;
using uint = unsigned int;
using ull = unsigned long long;
using pii = pair<int, int>;
using pli = pair<ll, int>;
using pll = pair<ll, ll>;
const ll maxn = 1000005;
const ll inf = 1e9 + 7;
int n, arr[maxn], q, a, b, c;
int st[4 * maxn], lazy[4 * maxn];
std::vector<int> construct_range(int M, int K)
{

}
long long count_triples(std::vector<int> H)
{
    ll ans = 0;
    for(int k = 1; k <= n; k++)
    {
        int i = k - H[k];
        int j1 = i + H[i];
        int j2 = k - H[i];
        int temp = H[i];
        int hj = max(H[i], H[k] - H[i]);
        if(i < j1 && j1 < k && H[j1] == hj) ans++;
        if(j1 != j2 && j2 > i && j2 < k && H[j2] == hj) ans++;

    }
    return ans;
}
int main()
{
    cin >> n;
    vector<int> H(n + 1);
    for(int i = 1; i <= n; i++) cin >> H[i];
    cout << count_triples(H);
}

Compilation message (stderr)

triples.cpp: In function 'std::vector<int> construct_range(int, int)':
triples.cpp:22:1: warning: no return statement in function returning non-void [-Wreturn-type]
   22 | }
      | ^
/usr/bin/ld: /tmp/ccu9KnI4.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccnWlsKc.o:triples.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status