1. What will be the output of the program? #include<stdio.h> int main() { int i; i = printf("How r u\n"); i = printf("%d\n", i); printf("%d\n", i); return 0; }
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By: guest on 01 Jun 2017 06.02 pm
In the program, printf() returns the number of charecters printed on the console i = printf("How r u\n"); This line prints "How r u" with a new line character and returns the length of string printed then assign it to variable i. So i = 8 (length of '\n' is 1). i = printf("%d\n", i); In the previous step the value of i is 8. So it prints "8" with a new line character and returns the length of string printed then assign it to variable i. So i = 2 (length of '\n' is 1). printf("%d\n", i); In the previous step the value of i is 2. So it prints "2".
So i = 8 (length of '\n' is 1). i = printf("%d\n", i); In the previous step the value of i is 8. So it prints "8" with a new line character and returns the length of string printed then assign it to variable i. So i = 2 (length of '\n' is 1). printf("%d\n", i); In the previous step the value of i is 2. So it prints "2".