Compilare: user.cpp: In function ‘void Check(int, int)’: user.cpp:137: warning: unused variable ‘A’ user.cpp:138: warning: unused variable ‘B’ user.cpp:139: warning: unused variable ‘C’ user.cpp:74: warning: unused variable ‘k’ user.cpp: In function ‘void Solve()’: user.cpp:160: warning: comparison between signed and unsigned integer expressions user.cpp:146: warning: unused variable ‘j’ user.cpp:146: warning: unused variable ‘k’ user.cpp:146: warning: unused variable ‘l’ user.cpp: In function ‘int main()’: user.cpp:166: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:167: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:169: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:171: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp: In function ‘void Check(int, int)’: user.cpp:106: warning: ‘M1’ may be used uninitialized in this function user.cpp:106: warning: ‘M2’ may be used uninitialized in this function