Question

Given an array of n distinct integers,d = [d[0], d[1],.., d[n - 1]], and an integer threshold, t, how many (a,b,c) index triplets exist that satisfy both of the following conditions?
d[a] < d[b] < d[c]
d[a] + d[b] + d[c] ≤ t
Function Description
Complete the function triplets in the editor below. The function must return a long integer denoting the number of (a,b,c) triplets satisfying the given conditions:
t: an integer treshold
d[d[0],....d[n-1]] : an array of integers
Constraints
1 ≤ n ≤ 104
0 ≤ d[i] < 109
0 < t < 3 x109
#include ... /
Complete the triplets function below.
long triplets (long t, vector int> d) {
int main()
ofstream fout(getenv("OUTPUT_PATH"));
string t_temp;
getline (cin, t_temp);
long t = stol(ltrim(rtrim(t_temp)));
string d_count_temp;
getline (cin, d_count_temp);
int d_count = stoi(ltrim(rtrim(d_count_temp)));
vector int> d(d_count);
for (int i = 0; i < d_count; i++) {
string d_item_temp;
getline (cin, d_item_temp);
int d_item = stoi(ltrim(rtrim(d_item_temp)));
d[i] = d_item;
long res = triplets(t, d);
fout << res << "\n";
fout.close();
return 0;
string ltrim(const string &str) {
string s(str);
S.erase

Answer 1

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