gradina.cpp: In function 'int main()': gradina.cpp:24: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result gradina.cpp:25: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result gradina.cpp:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result gradina.cpp:31: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result gradina.cpp:26: warning: 'im' may be used uninitialized in this function gradina.cpp:26: warning: 'jm' may be used uninitialized in this function gradina.cpp:27: warning: 'c' may be used uninitialized in this function