POJ C + + programming Problem # # #: Calculating the sum of squares

Programming Question # #: Calculate the sum of squares

Source: Peking University Online Program evaluation system POJ (Coursera statement: The exercises completed on POJ will not count to the final results of Coursera. )

Total time limit: 1000ms memory limit: 1024kB

Describe

Write the sum function so that it can calculate the sum of squares of the input series.

#include <iostream>using namespace std;//here to supplement your code int sqr (int n) {    return n * N;} int main () {    int t, n, a[0x100];    CIN >> T;    for (int c = 0; c < T; ++c) {        cin >> N;    for (int i = 0; i < n; ++i) cin >> A[i];    cout << sum (A, n, Sqr) << Endl;    }    return 0;}

Input

The first line is an integer t (T <= 10), representing the number of data groups;

Each set of input data contains two rows, the first line is an integer n (n <= 100),

The second line is n spaces separated by a number of integers

Output

For each set of input data, output the sum of the squares of n integers in the group data

Sample input

224 330 1 2

Sample output

255

#include <iostream>using namespacestd;//Add your code hereintSumintA[],intNint(*SQR) (int)) {    intsum =0;  for(inti =0; I < n; ++i) {sum+=Sqr (A[i]); }    returnsum;}intSqrintN) {returnn *N;}intMain () {intT, N, a[0x100]; CIN>>T;  for(intc =0; C < T; ++c) {cin>>N;  for(inti =0; I < n; ++i) Cin >>A[i]; cout<< sum (A, n, Sqr) <<Endl; }    return 0;}

POJ C + + programming Problem # # #: Calculating the sum of squares