title: Count Possible Paths Top Left Bottom Right Nxm Matrix 2
signature: countPossiblePathsTopLeftBottomRightNxmMatrix2(p, q) {
test_code: import 'dart:convert';
  
  // SOLUTION CODE
  // ============================================
  PLACEHOLDER_CODE_BODY
  
  // TESTING CODE 
  // ============================================
  bool validateSolution(int actual, int expected){
      return actual.toString() == expected.toString();
  }
  
  String driver(p, q, int expected){
      try
      {
          if (validateSolution(PLACEHOLDER_FN_NAME(p, q), expected)){
              return "PASSED";
          }
          return "FAILED";
      }catch(exception_object){
          return exception_object.runtimeType.toString();
      }
  }
  
  int main() {
  
      print("TEST-0...${driver(
          70, 5, 
          1088430)
      }");
  
      print("TEST-1...${driver(
          9, 59, 
          5743572120)
      }");
  
      print("TEST-2...${driver(
          54, 1, 
          1)
      }");
  
      return 0;
  }
source_py: def count_possible_paths_top_left_bottom_right_nxm_matrix_2(p, q):
      dp = [1 for i in range(q)]
      for i in range((p - 1)):
          for j in range(1, q):
              dp[j] += dp[(j - 1)]
      return dp[(q - 1)]
source_cpp: int count_possible_paths_top_left_bottom_right_nxm_matrix_2(int m, int n) {
    int dp [ n ] = {
      1 };
      dp [ 0 ] = 1;
      for ( int i = 0;
      i < m;
      i ++ ) {
        for ( int j = 1;
        j < n;
        j ++ ) {
          dp [ j ] += dp [ j - 1 ];
        }
      }
      return dp [ n - 1 ];
    }