Note:Includes all required header files using namespace std; int main () { FILE *fp; char x[1024]; fp = fopen("find.txt", "r"); // "ayushjain and prateek" x[0] = getc(fp); fseek(fp, 0, SEEK_END); fseek(fp, -7L, SEEK_CUR); fgets(x, 6, fp); puts(x); return 0;} 18.In fopen(), the open mode "wx" is sometimes preferred "w" because. i) Use of wx is more efficient. ii) If w is used, old contents of file are erased and a new empty file is created. When wx is used, fopen() returns NULL if file already exists.

Note:Includes all required header files using namespace std;

1.	Note:Includes all required header files using namespace std; int main () { FILE *fp; char x[1024]; fp = fopen("find.txt", "r"); // "ayushjain and prateek" x[0] = getc(fp); fseek(fp, 0, SEEK_END); fseek(fp, -7L, SEEK_CUR); fgets(x, 6, fp); puts(x); return 0;} 18.In fopen(), the open mode "wx" is sometimes preferred "w" because. i) Use of wx is more efficient. ii) If w is used, old contents of file are erased and a new empty file is created. When wx is used, fopen() returns NULL if file already exists.
A.	Only i
B.	Only ii
C.	Both i & ii
D.	None of the above
Answer» C. Both i & ii

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getc() returns EOF when
<pre class="result notranslate"> Note:Includes all required header files using namespace std; int main () { FILE *fp; char x[1024]; fp = fopen("find.txt", "r"); // "ayushjain and prateek" x[0] = getc(fp); fseek(fp, 0, SEEK_END); fseek(fp, -7L, SEEK_CUR); fgets(x, 6, fp); puts(x); return 0;} </pre>18.In fopen(), the open mode "wx" is sometimes preferred "w" because. i) Use of wx is more efficient. ii) If w is used, old contents of file are erased and a new empty file is created. When wx is used, fopen() returns NULL if file already exists.
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