The document contains C code examples demonstrating variable declarations and assignments, input/output functions, and type conversions. It declares integer, float, character variables and assigns literal values. It shows printf to output values and scanf to input values. It also contains examples of implicit and explicit type conversions between integer and float.

6. #include <stdio.h>
int main() {
printf(" !n");
return 0;
}
!

9. int a, b, c;
a = b + c;
b = 1;
c = 2;
printf("%dn", a);

11. int a;
int b = 1;
int c, d, e = 2;
double f = 3.12312;
char g = 'A';
[ ] [ ];
[ ] [ ] = [ ];
[ ] [1 ], [2 ];

13. int input_length; // 1
int option2 = 1; // 2
int MAX_SIZE = 100; // 3
int 1st_val = -1; // 4
int if; // 5
int _temp; // 6

14. int a, b, c;
a = 1;
b = a + 5;
c = 5 + b * 2;

15. scanf("%d %d", &a, &b);

17. : 5 6
11

18. #include <stdio.h>
int main() {
int a, b;
printf(" : ");
scanf("%d %d", &a, &b);
int c = a + b;
printf("%dn", c);
return 0;
}

19. : 5 6
11

20. #include <stdio.h>
int main() {
int a, b;
printf(" : ");
scanf("%d %d", &a, &b);
float c = (float)a / b;
printf("%dn", c);
return 0;
}

21. printf("%.2fn", 5 / 2);
int b = 1.2 * 3;
printf("%dn", a);
2
3

22. int i = 3;
int ii = 3.5;
float f = 3.333;
float ff = 3;
char c = 'A';
char cc = 65;

23. float r1 = 3 + 5.7;
float r2 = 5 / 2;

24. float r3 = (int)(3 + 5.7);
float r4 = (float)5 / 2;