Arrays in C Language | Full Guide in Telugu

Part-7: Oke peru tho 100 values ela store cheyali? - LearnTechSoft

💡 Real Life: Class lo 60 students - Prati okkariki veru veru variable vadithey 60 variables kavali! Array vaste - marks[60] okati chalu - Andari marks store chesukovachu!

1. Array ante enti?

Array = Collection of same type values - Oke data type tho chala values ni okasari store cheyadam. Index 0 nundi start avtundi.

Index
0 | 1 | 2 | 3 | 4

Value
85 | 90 | 75 | 88 | 95

Array Name: marks[5]

2. Array Declaration & Initialization

// Method 1: Declare + Initialize
int marks[5] = {85, 90, 75, 88, 95};

// Method 2: Declare first, value later
int marks[5];
marks[0] = 85;
marks[1] = 90;

// Method 3: Size ivvakapoina auto-count
int marks[] = {85, 90, 75, 88, 95}; // Size = 5 automatic

// Access: marks[0] = 85, marks[2] = 75

3. Full Program - Array Input & Output

#include <stdio.h>
int main() {
    int marks[5];
    int sum=0;
    
    // Input - 5 marks
    printf("Enter 5 marks:\n");
    for(int i=0; i<5; i++) {
        scanf("%d", &marks[i]);
    }
    
    // Output + Sum
    printf("Marks are:\n");
    for(int i=0; i<5; i++) {
        printf("%d ", marks[i]);
        sum = sum + marks[i];
    }
    
    printf("\nTotal: %d", sum);
    printf("\nAverage: %.2f", sum/5.0);
    
    return 0;
}

4. Important Points - Exam lo adugutaru!

⚠️ GURTHU PETTUKONDI:
1. Array Index 0 nundi start - marks[5] ante 0,1,2,3,4 varake!
2. marks[5] anedi 6th element kaadu - 5 elements unnai ante last index 4
3. Array size fix - Taruvata size marchalem

5. 2D Array - Matrix (Bonus)

2D Array ante Table lanti di - Rows & Columns. Game Board, Matrix lanti vatiki vadatam.

int matrix[2][3] = {
    {1, 2, 3},
    {4, 5, 6}
};
// 2 Rows, 3 Columns

1	2	3
4	5	6

🎯 Next Post: Functions in C Language - Part-8

Practice: 10 numbers lo biggest, smallest kanukkondi - Array tho!