Compilare: user.cpp: In function ‘int main()’: user.cpp:29:43: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen( "pocnitoare.in", "r", stdin ); ^ user.cpp:30:45: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen( "pocnitoare.out", "w", stdout ); ^ user.cpp:32:54: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf( "%d%d%d%d%d%d", &N, &A, &B, &X1, &Q, &Q1 ); ^