[C/C++] Tính tổng các số dương trong mảng các số thực

Yêu cầu:
Tính tổng các số dương trong mảng các số thực

Thuật toán:
1. Viết hàm nhập vào ma trận
2. Viết hàm tính tổng các phần tử dương trong ma trận

Code:

/*****Sum all of positive elements in matrix********
*Author: vncoding
*Date : 31/03/2019
*****************************************************/

#include <stdio.h>
#include <conio.h>
#include <stdlib.h>
#define N 100
#define M 100

void ImportData(float[][M], int, int, char*);
void PrintMatrix(float[][M], int, int);
float SumPostInMatrix(float A[][M], int, int);
void main()
{
    int nRow, nCol;
    float A[N][M];

    printf("\nNumber of row: ");
    scanf("%d", &nRow);
    printf("\nNumber of column: ");
    scanf("%d", &nCol);
    ImportData(A, nRow, nCol, "A");
    PrintMatrix(A, nRow, nCol);

    printf("\nSum all of positive elements in matrix: %f", SumPostInMatrix(A, nRow, nCol));

    getch();
}

/*************************************************************
* Function      : SumPostInMatrix()
* Parameter     : A[][M]: input matrix (I)
                  nRow  : row number   (I)
                  nCol  : column number(I)  
* Return        : float
* Description   : Sum of positive element in matrix
*************************************************************/
float SumPostInMatrix(float A[][M], int nRow, int nCol)
{
    int iRow, iCol;
    float sum = 0.0;
    for (iRow = 0; iRow < nRow; iRow++)
    {
        for (iCol = 0; iCol < nCol; iCol++)
        {
            if (A[iRow][iCol] > 0)
                sum += A[iRow][iCol];
        }
    }
    return sum;
}

/*************************************************************
* Function      : ImportData()
* Parameter     : A[][M]: input matrix (I)
                  nRow  : row number   (I)
                  nCol  : column number(I)
                  nameMatrix: matrix name (I)
* Return        : void
* Description   : Import matrix data
*************************************************************/
void ImportData(float Matrix[][M], int nRow, int nCol, char* nameMatrix)
{
    int iRow, iCol;
    for (iRow = 0; iRow < nRow; iRow++)
        for (iCol = 0; iCol < nCol; iCol++)
        {
            printf("\n%s[%d][%d] = ", nameMatrix, iRow, iCol);
            scanf("%f", &Matrix[iRow][iCol]);
        }
}

/*************************************************************
* Function      : PrintMatrix()
* Parameter     : Matrix: input matrix (I)
                  nRow  : row number   (I)
                  nCol  : column number(I)
* Return        : void
* Description   : Display matrix data
*************************************************************/
void PrintMatrix(float Matrix[][M], int nRow, int nCol)
{
    int iRow, iCol;
    printf("\nA = ");
    for (iRow = 0; iRow < nRow; iRow++)
    {
        printf("\n");
        for (iCol = 0; iCol < nCol; iCol++)
        {
            printf("\t%.2f\t", Matrix[iRow][iCol]);
        }
    }
}

Kết quả:
Number of row: 3
Number of column: 4
A[0][0] = 3
A[0][1] = 4.5
A[0][2] = -5.6
A[0][3] = 7.2
A[1][0] = 9.4
A[1][1] = 2
A[1][2] = 0
A[1][3] = -3.5
A[2][0] = 7.8
A[2][1] = 8.9
A[2][2] = -2.9
A[2][3] = 3.4

A =
3.00 4.50 -5.60 7.20
9.40 2.00 0.00 -3.50
7.80 8.90 -2.90 3.40

Sum all of positive elements in matrix: 46.199997

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