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What will be the output of the program? #include #include int main() { char str1[20] = "Hello", str2[20] = " World"; printf("%s\n", strcpy(str2, strcat(str1, str2))); return 0; }

Correct Answer: Hello World

Explanation:

Step 1: char str1[20] = "Hello", str2[20] = " World"; The variable str1 and str2 is declared as an array of characters and initialized with value "Hello" and " World" respectively.


Step 2: printf("%s\n", strcpy(str2, strcat(str1, str2)));


=> strcat(str1, str2)) it append the string str2 to str1. The result will be stored in str1. Therefore str1 contains "Hello World".


=> strcpy(str2, "Hello World") it copies the "Hello World" to the variable str2.


Hence it prints "Hello World".


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