Illustrating the generic partial_sum algorithm : array algorithms « STL Basics « C++






  1. C++
  2. STL Basics
  3. array algorithms

Illustrating the generic partial_sum algorithm

 
 
#include <algorithm>
#include <numeric>
#include <iostream>
using namespace std;

int main()
{
  const int N = 20;
  int x1[N], x2[N];

  for (int i = 0; i < N; ++i)
    x1[i] = i;

  // Compute the partial sums of 0, 1, 2, 3, ..., N - 1, putting the result inx2:
  partial_sum(&x1[0], &x1[N], &x2[0]);

  for (int i = 0; i < N; ++i)
    cout << x2[i] << " ";

  return 0;
}

/* 
0 1 3 6 10 15 21 28 36 45 55 66 78 91 105 120 136 153 171 190 
 */








Related examples in the same category

1.Using the STL generic reverse algorithm with an array
2.Using reverse_copy to copy the array reversely
3.Use random_shuffle algorithms with array
4.Illustrating the generic inner_product algorithm with predicate
5.Illustrating the generic adjacent_difference algorithm
6.Use the generic partition algorithms: Partition array1, putting numbers greater than 4 first, followed by those less than or equal to 4
7.Using function templates to get the max and min value in an array