We want to dynamically allocate space for a string of length n. Among the following statements, which one allows to achieve this?

Question

We want to dynamically allocate space for a string of length  n . Among the following statements, which one allows to achieve this?

Answer

char * str = (char *) malloc(n * sizeof(char));

Answer

char * str = (char *) malloc((n + 1) * sizeof(char));

Answer

char * str = (char *) malloc(n * char);

Answer

char * str = (char *) malloc((n + 1) * sizeof(char *));

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