CODE IN C /** * Function: weird_sums * Description: replaces each matrix element

Question

 CODE IN C /** * Function:  weird_sums * Description:  replaces each matrix element m[i][j] with the sum of: * *       - itself and *       - the sum of all elements which are BOTH ABOVE IT AND *            TO ITS LEFT * * Illustration:  consider the matrix element labeled X below. *                It will be replaced with the sum of itself (X) *                and all matrix elements marked * * *         ***...... *         ***...... *         ***...... *         ...X..... *         ......... *         ......... *         ......... * * Example: * *         1 3 2 2 *         6 1 9 8 *         5 7 2 8 * *    will become * *         1   3   2  2 *         6   2  13 14 *         5  14  13 30 */ extern void mtx_weird_sums(int m[][NCOLS], int nrows); 

Explanation / Answer

#include <stdio.h>

int main()
{
int m[3][4];
int i=4,j=3,number;
for(i=0;i<3;i++){
for(j=0;j<4;j++){
printf("enter number");
scanf("%d",&number);
m[i][j]=number;
}
}
int rowa= mtx_weird_sums(m, 4);
return 0;
}
int mtx_weird_sums(int a[3][4], int nrows)
{
int i,j,k,l,sum,b[3][4];
for(i=0;i<3;i++){
for(j=0;j<4;j++){
sum=a[i][j];
for(k=0;k<i;k++){
for(l=0;l<j;l++){
sum=sum+a[k][l];
}
}
b[i][j]=sum;
}
}
for(i=0;i<3;i++){
for(j=0;j<4;j++){
printf("%d ",b[i][j]);
  
}
printf(" ");
}
return nrows;
}

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