C Programming - Input / Output
Exercise : Input / Output - Find Output of Program
11.
What will be the output of the program ?
#include<stdio.h>
int main()
{
int a=250;
printf("%1d \n", a);
return 0;
}
Answer: Option
Explanation:
int a=250; The variable a is declared as an integer type and initialized to value 250.
printf("%1d \n", a); It prints the value of variable a.
Hence the output of the program is 250.
12.
What will be the output of the program ?
#include<stdio.h>
int main()
{
FILE *fp;
char ch, str[7];
fp=fopen("try.c", "r"); /* file 'try.c' contains "This is Nagpur" */
fseek(fp, 9L, SEEK_CUR);
fgets(str, 5, fp);
puts(str);
return 0;
}
13.
What will be the output of the program if value 25 given to scanf()?
#include<stdio.h>
int main()
{
int i;
printf("%d\n", scanf("%d", &i));
return 0;
}
Answer: Option
Explanation:
The scanf function returns the number of input is given.
printf("%d\n", scanf("%d", &i)); The scanf function returns the value 1(one).
Therefore, the output of the program is '1'.
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