sirag.cpp: In function 'int main()': sirag.cpp:23: warning: suggest explicit braces to avoid ambiguous 'else' sirag.cpp:7: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result sirag.cpp:8: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result sirag.cpp:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result sirag.cpp:13: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result sirag.cpp:14: warning: ignoring return value of 'char* gets(char*)', declared with attribute warn_unused_result /tmp/cc7UI7ye.o: In function `main': sirag.cpp:(.text+0xcc): warning: the `gets' function is dangerous and should not be used.