Function addTwoMatrices: The function/method addTwoMatrices accepts four arguments – R, C, matrix1 and matrix2. The matrix1 represents a pointer to a two-dimensional array and the matrix2 represents a pointer to another two-dimensional array. Both matrices have the same size R*C.
The function/method addTwoMatrices must return a double pointer representing an integer matrix of size R*C which contains the sum of the given two matrices.
Your task is to implement the function addTwoMatrices so that it passes all the test cases.
IMPORTANT: Do not write the main() function as it is already defined.
Example Input/Output 1:
Input:
2 3
9 7 4
2 8 6
8 5 4
2 7 1
Output:
Matrix 1:
9 7 4
2 8 6
Matrix 2:
8 5 4
2 7 1
Matrix Sum:
17 12 8
4 15 7
Explanation:
Here R = 2 and C = 3.
The sum of the given two matrices is obtained by adding the integers values at the same position.
9+8 7+5 4+4
2+2 8+7 6+1
Hence the output is
17 12 8
4 15 7
Example Input/Output 2:
Input:
5 4
19 3 18 4
21 13 2 10
7 14 24 25
19 8 20 5
13 19 3 7
4 6 2 6
2 5 9 2
1 4 4 9
7 6 1 1
2 5 8 5
Output:
Matrix 1:
19 3 18 4
21 13 2 10
7 14 24 25
19 8 20 5
13 19 3 7
Matrix 2:
4 6 2 6
2 5 9 2
1 4 4 9
7 6 1 1
2 5 8 5
Matrix Sum:
23 9 20 10
23 18 11 12
8 18 28 34
26 14 21 6
15 24 11 12
#include <stdio.h>
#include <stdlib.h>
void printMatrix(int R, int C, int matrix[][C])
{
for(int row = 0; row < R; row++)
{
for(int col = 0; col < C; col++)
{
printf("%d ", matrix[row][col]);
}
printf("n");
}
} // end of printMatrix function
int** addTwoMatrices(int R, int C, int *matrix1, int *matrix2)
{
int **ans=malloc(sizeof(int*)*R);
int ind=0;
for(int i=0;i<R;i++){
ans[i]=malloc(sizeof(int)*C);
for(int j=0;j<C;j++){
ans[i][j]=*(matrix1+ind)+*(matrix2+ind);
ind++;
}
}
return ans;
} // end of addTwoMatrices function
int main()
{
int R, C;
scanf("%d %d", &R, &C);
int matrix1[R][C], matrix2[R][C];
for(int row = 0; row < R; row++)
{
for(int col = 0; col < C; col++)
{
scanf("%d", &matrix1[row][col]);
}
}
for(int row = 0; row < R; row++)
{
for(int col = 0; col < C; col++)
{
scanf("%d", &matrix2[row][col]);
}
}
int **resultMatrix = addTwoMatrices(R, C, matrix1, matrix2);
printf("Matrix 1:n");
printMatrix(R, C, matrix1);
printf("Matrix 2:n");
printMatrix(R, C, matrix2);
printf("Matrix Sum:n");
for(int row = 0; row < R; row++)
{
for(int col = 0; col < C; col++)
{
printf("%d ", resultMatrix[row][col]);
}
printf("n");
}
return 0;
} // end of main function
