title: Subsequences Size Three Array Whose Sum Divisible M
signature: pub fn subsequences_size_three_array_whose_sum_divisible_m(a: Vec<i32>, n: i32, m: i32) -> i32 {
test_code: use std::collections::HashMap;
  use std::collections::HashSet;
  use std::cmp::*;
  use std::collections::*;
  use std::fmt::*; 
  
  
  // SOLUTION CODE
  // ============================================
  PLACEHOLDER_CODE_BODY
  
  // TESTING CODE 
  // ============================================
  pub fn validate_solution(actual: i32, expected: i32)->bool{
  return actual==expected
  }
  pub fn driver(a: Vec<i32>, n: i32, m: i32, expected: i32)->String{
      if validate_solution(PLACEHOLDER_FN_NAME(a, n, m), expected) {
        return "PASSED".to_string();
      };
      return "FAILED".to_string();
  
  }
  
  fn main() {
      println!("TEST-0...{}", driver(
        Vec::from([14, 35, 56, 70, 88]), 3, 4, 
        0
      ));
      
      println!("TEST-1...{}", driver(
        Vec::from([-50, -92, 16, -68, -36]), 3, 4, 
        0
      ));
      
      println!("TEST-2...{}", driver(
        Vec::from([0, 0, 0, 1, 1, 1]), 4, 5, 
        1
      ));
      
      println!("TEST-3...{}", driver(
        Vec::from([76, 43, 22, 41, 49, 99, 25, 40, 3, 45, 60, 16, 83, 62, 26, 93, 64, 73, 72, 53, 6, 32, 35, 67, 17]), 14, 21, 
        19
      ));
      
      println!("TEST-4...{}", driver(
        Vec::from([-90, -86, -86, -66, -50, -48, -44, -42, -42, -38, -24, -22, -20, -18, -8, 8, 24, 28, 34, 48, 60, 62, 66, 68, 74, 76, 80, 82, 88]), 24, 20, 
        207
      ));
      
      println!("TEST-5...{}", driver(
        Vec::from([1, 1, 1, 0, 0, 1, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 1, 1, 0, 1, 1, 1, 0, 1, 1, 0]), 24, 30, 
        120
      ));
      
      println!("TEST-6...{}", driver(
        Vec::from([4, 5, 8, 9, 10, 12, 13, 16, 17, 18, 21, 21, 25, 27, 28, 30, 36, 36, 54, 55, 56, 57, 60, 62, 67, 67, 68, 71, 72, 72, 73, 73, 77, 77, 83, 86, 86, 86, 87, 89, 92, 92, 96, 97, 97, 98]), 24, 23, 
        85
      ));
      
      println!("TEST-7...{}", driver(
        Vec::from([-64, 52, -32, 38, 8, -62, -56, 20, 72, -12, 32, 44]), 6, 6, 
        2
      ));
      
      println!("TEST-8...{}", driver(
        Vec::from([0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]), 12, 15, 
        220
      ));
      
      println!("TEST-9...{}", driver(
        Vec::from([77, 68, 45, 6, 27, 19, 29, 95, 21, 2, 39, 48, 72, 67, 49, 45, 1, 16, 56, 78, 25, 22, 27, 40, 31, 34, 26, 35, 12]), 25, 25, 
        92
      ));
      
  }
source_py: def subsequences_size_three_array_whose_sum_divisible_m(A, N, M):
      sum = 0
      ans = 0
      for i in range(0, N):
          for j in range((i + 1), N):
              for k in range((j + 1), N):
                  sum = ((A[i] + A[j]) + A[k])
                  if ((sum % M) == 0):
                      ans = (ans + 1)
      return ans
source_cpp: int subsequences_size_three_array_whose_sum_divisible_m(vector<int> A, int N, int M) {
    int sum = 0;
    int 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 ++ ) {
          sum = A [ i ] + A [ j ] + A [ k ];
          if ( sum % M == 0 ) ans ++;
        }
      }
    }
    return ans;
  }