Submission #1250163

#	Time	Username	Problem	Language	Result	Execution time	Memory
1250163		liamislazy	Triple Peaks (IOI25_triples)	C++20	Compilation error	0 ms	0 KiB

triples

#include "triples.h"
#include <bits/stdc++.h>
#define el '\n'
typedef long long llo;
#define fn(i,a,b) for (int i = a; i <= b; i++)
#define rn(i,a,b) for (int i = a; i >= b; i--)
using namespace std;

long long count_triples(std::vector<int> H) {
	int n = H.size();
    llo ans = 0;
    fn(j,0,n-1) {
        fn(i,0,j-1) {
            int d1 = j - i;
            int x  = H[i];
            int y  = H[j];
            int k;
            if (H[i] == d1) {
                int d2 = H[j];
                k = j + d2;
                if (k < N && H[k] == d1 + d2) ans++;
            }
            if (H[j] == d1) {
                int d2 = H[i];
                k = j + d2;
                if (k < N && H[k] == d1 + d2) ans++;
            }

            if (H[i] == d1 && H[j] > d1) {
                int d2 = H[j] - d1;
                k = j + d2;
                if (k < N && H[k] == H[j]) ans++;
            }

            if (H[j] == d1 && H[i] > d1) {
                int d2 = H[i] - d1;
                k = j + d2;
                if (k < N && H[k] == H[i]) ans++;
            }

            if (H[j] == d1 + H[i]) {
                int d2 = H[i];
                k = j + d2;
                if (k < N && H[k] == d1) ans++;
            }

            if (H[i] == d1 + H[j]) {
                int d2 = H[j];
                k = j + d2;
                if (k < N && H[k] == d1) ans++;
            }
        }
    }
    return ans;
}

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

Compilation message (stderr)

triples.cpp: In function 'long long int count_triples(std::vector<int>)':
triples.cpp:21:25: error: 'N' was not declared in this scope
   21 |                 if (k < N && H[k] == d1 + d2) ans++;
      |                         ^
triples.cpp:26:25: error: 'N' was not declared in this scope
   26 |                 if (k < N && H[k] == d1 + d2) ans++;
      |                         ^
triples.cpp:32:25: error: 'N' was not declared in this scope
   32 |                 if (k < N && H[k] == H[j]) ans++;
      |                         ^
triples.cpp:38:25: error: 'N' was not declared in this scope
   38 |                 if (k < N && H[k] == H[i]) ans++;
      |                         ^
triples.cpp:44:25: error: 'N' was not declared in this scope
   44 |                 if (k < N && H[k] == d1) ans++;
      |                         ^
triples.cpp:50:25: error: 'N' was not declared in this scope
   50 |                 if (k < N && H[k] == d1) ans++;
      |                         ^