C プログラミングにおけるコンパイル時初期化と実行時初期化について説明する

type name[size] = { list_of_values }; //integer array initialization int rollnumbers[4]={ 2, 5, 6, 7}; //float array initialization float area[5]={ 23.4, 6.8, 5.5,7.3,2.4 }; //character array initialization char name[9]={ 'T', 'u', 't', 'o', 'r', 'i', 'a', 'l', '\0' };

#include void main(){ //Declaring array with compile time initialization// int array[5]={1,2,3,4,5}; //Declaring variables// int i; //Printing O/p using for loop// printf("Displaying array of elements :"); for(i=0;i<5;i++){ printf("%d ",array[i]); } }

Displaying array of elements :1 2 3 4 5

#include void main(){ //Declaring the array - run time// int A[2][3],B[2][3],i,j,sum[i][j],product[i][j]; //Reading elements into the array's A and B using for loop// printf("Enter elements into the array A: 
"); for(i=0;i<2;i++){ for(j=0;j<3;j++){ printf("A[%d][%d] :",i,j); scanf("%d",&A[i][j]); } printf("
"); } for(i=0;i<2;i++){ for(j=0;j<3;j++){ printf("B[%d][%d] :",i,j); scanf("%d",&B[i][j]); } printf("
"); } //Calculating sum and printing output// printf("Sum array is : 
"); for(i=0;i<2;i++){ for(j=0;j<3;j++){ sum[i][j]=A[i][j]+B[i][j]; printf("%d\t",sum[i][j]); } printf("
"); } //Calculating product and printing output// printf("Product array is : 
"); for(i=0;i<2;i++){ for(j=0;j<3;j++){ product[i][j]=A[i][j]*B[i][j]; printf("%d\t",product[i][j]); } printf("
"); } }

Enter elements into the array A: A[0][0] :A[0][1] :A[0][2] : A[1][0] :A[1][1] :A[1][2] : B[0][0] :B[0][1] :B[0][2] : B[1][0] :B[1][1] :B[1][2] : Sum array is : 000 000 Product array is : 000 000