Submission #1361477

#	Time	Username	Problem	Language	Result	Execution time	Memory
1361477		jalol250	Triple Peaks (IOI25_triples)	C++20	Compilation error	0 ms	0 KiB

triples

#include <bits/stdc++.h>
using namespace std;
#define int long long

long long count_triples(vector<int> H){
    int n = H.size();
    long long 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> a = {H[i],H[j],H[k]};
                vector<int> b = {j-i, k-i, k-j};
                sort(a.begin(),a.end());
                sort(b.begin(),b.end());
                if(a==b) ans++;
            }
        }
    }
    return ans;
}

signed main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);

    int n;
    cin>>n;
    vector<int> v;
    for(int i=0;i<n;i++){
        cin>>v[i];
    }
    cout<<count_triples(v);
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccc1Qltr.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccKiVV8N.o:triples.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccc1Qltr.o: in function `main':
grader.cpp:(.text.startup+0x197): undefined reference to `construct_range(int, int)'
/usr/bin/ld: grader.cpp:(.text.startup+0x367): undefined reference to `count_triples(std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status