How to perform arithmetic operations on two-dimensional array in C?

An array is a group of related data items that are stored with single name.

For example, int student[30]; //student is an array name that holds 30 collection of data items with a single variable name

Operations of array

• Searching − It is used to find whether particular element is present or not

• Sorting − It helps in arranging the elements in an array either in ascending or descending order.

• Traversing − It processes every element in an array sequentially.

• Inserting − It helps in inserting the elements in an array.

• Deleting − It helps in deleting an element in an array.

The logic applied to perform arithmetic operation of two-dimensional array is as follows −

for(row = 0; row < i; row++){    for(col = 0;col < j;col++){       add[row][col] = A[row][col] + B[row][col];       sub[row][col] = A[row][col] - B[row][col];       mul[row][col] = A[row][col] * B[row][col];       div[row][col] = A[row][col] / B[row][col];       mod[row][col] = A[row][col] % B[row][col];    } }

The logic applied to print all arithmetic operation of two-dimensional array is as follows −

printf("
Add\t Sub\t Mul\t Div\t Mod
"); printf("-------------------------------
"); for(row = 0; row < i; row++){    for(col = 0; col < j; col++){       printf("
%d \t ", add[row][col]);       printf("%d \t ", sub[row][col]);       printf("%d \t ", mul[row][col]);       printf("%.2f \t ", div[row][col]);       printf("%d \t ", mod[row][col]);    } }

Program

Following is the C program to perform arithmetic operations on two-dimensional array −

 Live Demo

#include<stdio.h> int main(){    int i, j, row, col,A[20][20], B[20][20];    int add[10][10], sub[10][10], mul[10][10], mod[10][10];    float div[10][10];    printf("enter no: of rows and columns:
");    scanf("%d %d", &i, &j);    printf("enter elements of 1st array:
");    for(row= 0; row < i; row++){       for(col = 0;col < j;col++){          scanf("%d", &A[row][col]);       }    }    printf("enter elements of 2nd array:
");    for(row = 0; row < i; row++){       for(col = 0;col < j;col++){          scanf("%d", &B[row][col]);       }    }    for(row = 0; row < i; row++){       for(col = 0;col < j;col++){          add[row][col] = A[row][col] + B[row][col];          sub[row][col] = A[row][col] - B[row][col];          mul[row][col] = A[row][col] * B[row][col];          div[row][col] = A[row][col] / B[row][col];          mod[row][col] = A[row][col] % B[row][col];       }    }    printf("
Add\t Sub\t Mul\t Div\t Mod
");    printf("-------------------------------
");    for(row = 0; row < i; row++){       for(col = 0; col < j; col++){          printf("
%d \t ", add[row][col]);          printf("%d \t ", sub[row][col]);          printf("%d \t ", mul[row][col]);          printf("%.2f \t ", div[row][col]);          printf("%d \t ", mod[row][col]);       }    }    return 0; }

Output

When the above program is executed, it produces the following result −

enter no: of rows and columns: 3 4 enter elements of 1st array: 1 2 4 5 6 7 3 8 3 2 1 8 enter elements of 2nd array: 1 2 1 2 1 3 4 2 1 2 1 1 Add   Sub  Mul  Div  Mod ------------------------------- 2     0    1   1.00  0 4     0    4   1.00  0 5     3    4   4.00  0 7     3    10  2.00  1 7     5    6   6.00  0 10    4    21  2.00   1 7    -1    12  0.00   3 10    6    16   4.00  0 4    2     3    3.00  0 4    0    4    1.00   0 2    0    1    1.00   0 9    7    8    8.00    0