Submission #1252533

#	Time	Username	Problem	Language	Result	Execution time	Memory
1252533		ollelap	Triple Peaks (IOI25_triples)	C++20	8 / 100	2095 ms	1860 KiB

triples

#include "triples.h"

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

#define rep(i,a,b) for(int i = a; i < b; i++)

long long count_triples(std::vector<int> arr) {
    int n = arr.size();

    auto valid = [&](int i, int j, int k) {
        int a[3] = {abs(i-j), abs(i-k), abs(j-k)};
        int b[3] = {arr[i], arr[j], arr[k]};
        sort(a, a+3);
        sort(b, b+3);

        return (a[0] == b[0] && a[1] == b[1] && a[2] == b[2]);
    };


    int ans = 0;
    rep(i,0,n) rep(j,i+1,n) rep(k,j+1,n) {
        if( valid(i, j, k)) ans++;
    }
    
    return ans;
}

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

• Subtask 0: 0 / 0
• Subtask 1: 8 / 8
• Subtask 2: 0 / 6
• Subtask 3: 0 / 10
• Subtask 4: 0 / 11
• Subtask 5: 0 / 16
• Subtask 6: 0 / 19
• Subtask 7: 0 / 5
• Subtask 8: 0 / 5
• Subtask 9: 0 / 5
• Subtask 10: 0 / 5
• Subtask 11: 0 / 5
• Subtask 12: 0 / 5