C | Input and Output | Question 13

Predict the output of following program?

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#include "stdio.h"
int main()
{
    char arr[100];
    printf("%d", scanf("%s", arr));
    /* Suppose that input value given
        for above scanf is "GeeksQuiz" */
    return 1;
}

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(A) 9

(B) 1

(C) 10

(D) 100


Answer: (B)

Explanation: In C, scanf returns the no. of inputs it has successfully read. See https://www.geeksforgeeks.org/archives/674

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