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Dynamically allocating 2D array
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| #include<stdio.h> | |
| #include<stdlib.h> | |
| int main(){ | |
| int **arr; | |
| int rows,cols; | |
| printf("\nEnter the number of rows and columns respectively:" ); | |
| scanf("%d %d",&rows,&cols ); | |
| arr=(int**)malloc(rows*sizeof(int*)); | |
| if (arr==NULL){ | |
| printf("\nThe space could not be allocated:"); | |
| return (0); | |
| } | |
| for (int i=0;i<rows;i++){ | |
| arr[i]=(int*)malloc(cols*sizeof(int)); | |
| if (arr[i]==NULL){ | |
| printf("\nThe space could not be allocated:"); | |
| return (0); | |
| } | |
| } | |
| printf("\nEnter array elements"); | |
| for(int i=0;i<rows;i++){ | |
| for (int j=0;j<cols;j++){ | |
| scanf("%d",&arr[i][j]); | |
| } | |
| } | |
| for (int i=0;i<rows;i++){ | |
| printf("\n"); | |
| for(int j=0;j<cols;j++){ | |
| printf("%d\t", arr[i][j]); | |
| } | |
| } | |
| for (int i=0;i<rows;i++) | |
| free(arr[i]); | |
| free(arr); | |
| return 0; | |
| } |
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