"sum of vector c++" Code Answer's
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sum of vector c++
accumulate(a.begin(), a.end(), 0);
sum of elements in c++ stl
accumulate(a.begin(), a.end(), 0)
sum elements in vector c++
for (auto& n : vector)
sum_of_elems += n;
Source: stackoverflow.com
sum vector c++
vector<int> v{1,2,3,4,5,6,7,8,9};
int sum = 0;
//Method 1:
sum = accumulate(v.begin(), v.end(), 0);
//Method 2:
for(auto& i : v) sum+=i;
sum of vector c++
//Syntax
accumulate(first, last, sum);
accumulate(first, last, sum, myfun);
first, last : first and last elements of range
whose elements are to be added
sum : initial value of the sum
myfun : a function for performing any
specific task. For example, we can
find product of elements between
first and last.
//Example
int a[] = {5 , 10 , 15} ;
int res = accumulate(a,a+3,0); // 30
C++ sum a vector of digits
// Sum digits in vector
int digit_sum(vector<int> num) {
int sum = 0;
for (auto x : num) sum += x;
return sum;
}
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