Programming and Technical - L3

What will be the output of the following C code?

#include<stdio.h>

main()

{

int n;

n=f1(4);

printf("%d", n);

}

f1(int x)

{

int b;

if(x==1)

{

return 1;

}

else

{

b=x*f1(x-1);

return b;

}

}

• 24

• 4

• 12

• 10

What will be the output of the following C code?

#include<stdio.h>

void main()

{

int a[5] = {5,1,15,20,25};

int i, j, m;

i = ++a[1];

j = a[1]++;

m = a[i++];

printf("%d, %d, %d", i, j, m);

}



• 2, 3, 20 

• 3, 2, 15 

• 2, 1, 15

• 1, 2, 5

What will be the output of the following code snippet?

#include <stdio.h>

void solve() {

int a = 3;

int res = a++ + ++a + a++ + ++a;

printf("%d", res);

}

int main() {

solve();

return 0;

}

• 12

• 24

• 20

• 18

void main()

{

int sum=1, index=9;

do

{

index = index - 1;

sum *= 2;

}while( index > 9);

}

• 1

• 2

• 9

• 0.5

#include<stdio.h>

void main()

{

int i,j;

for(i=0,j=0;i<10,j<20;i++,j++)

{

printf("i=%d %t j=%d", i,j);

}

}

• 10 10

• 10 20

• 20 20

• Error