Compilare: user.cpp: In function ‘int main()’: user.cpp:147:66: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] TT[len][i]=minLev(TT[len-1][i], TT[len-1][i+(1 << len-1)]); ^ user.cpp: In function ‘void readInt(int&)’: user.cpp:40:43: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buff, 1, buffMax, stdin); ^ user.cpp:51:43: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buff, 1, buffMax, stdin); ^ user.cpp: In function ‘void readDouble(double&)’: user.cpp:65:43: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buff, 1, buffMax, stdin); ^ user.cpp:76:43: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buff, 1, buffMax, stdin); ^ user.cpp: In function ‘int main()’: user.cpp:127:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("trenuri2.in", "r", stdin); ^ user.cpp:128:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("trenuri2.out", "w", stdout); ^ user.cpp:129:35: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buff, 1, buffMax, stdin); ^