Submission #1249546

#	Time	Username	Problem	Language	Result	Execution time	Memory
1249546		Charizard2021	Triple Peaks (IOI25_triples)	C++20	Compilation error	0 ms	0 KiB

triples

#include<bits/stdc++.h>
#include "triples.h"
using namespace std;
long long count_triples(vector<long long> H){
    long long n = (long long)H.size();
    if(n <= 100){
        long long ans = 0;
        for(long long i = 0; i < n; i++){
            for(long long j = i + 1; j < n; j++){
                for(long long k = j + 1; k < n; k++){
                    vector<long long> v;
                    v.push_back(j - i);
                    v.push_back(k - j);
                    v.push_back(k - i);
                    vector<long long> v2;
                    v2.push_back(H[i]);
                    v2.push_back(H[j]);
                    v2.push_back(H[k]);
                    sort(v2.begin(), v2.end());
                    sort(v.begin(), v.end());
                    if(v == v2){
                        ans++;
                    }
                }
            }
        }
        return ans;
    }
    long long thing = 0;
    for(long long i = 0; i < n; i++){
        thing = max(thing, H[i]);
    }
    if(thing <= 10){
        long long ans = 0;
        for(long long i = 0; i + 10 < n; i++){
            for(long long j = i + 1; j <= i + 10; j++){
                for(long long k = j + 1; k <= i + 10; k++){
                    vector<long long> v;
                    v.push_back(j - i);
                    v.push_back(k - j);
                    v.push_back(k - i);
                    vector<long long> v2;
                    v2.push_back(H[i]);
                    v2.push_back(H[j]);
                    v2.push_back(H[k]);
                    sort(v2.begin(), v2.end());
                    sort(v.begin(), v.end());
                    if(v == v2){
                        ans++;
                    }
                }
            }
        }
        return ans;
    }
}

std::vector<int> construct_range(int M, int K) {
  return {1, 1, 1};
}

Compilation message (stderr)

triples.cpp: In function 'long long int count_triples(std::vector<long long int>)':
triples.cpp:56:1: warning: control reaches end of non-void function [-Wreturn-type]
   56 | }
      | ^
/usr/bin/ld: /tmp/ccHvh3d9.o: in function `main':
grader.cpp:(.text.startup+0x37b): undefined reference to `count_triples(std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status