vot.cpp: In function 'int main()': vot.cpp:12: warning: unused variable 'i' vot.cpp:12: warning: unused variable 'm' vot.cpp:12: warning: unused variable 'j' vot.cpp:12: warning: unused variable 'j2' vot.cpp:13: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result vot.cpp:14: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result vot.cpp:15: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result