submult.cpp: In function 'int main()': submult.cpp:6: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result submult.cpp:7: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result submult.cpp:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result submult.cpp:8: warning: 'sol1' may be used uninitialized in this function submult.cpp:8: warning: 'sol2' may be used uninitialized in this function