Compilare: main.cpp: In member function 'InParser& InParser::operator>>(int&)': main.cpp:37:3: warning: this 'while' clause does not guard... [-Wmisleading-indentation] while(!isdigit(c = read_ch())); ^~~~~ main.cpp:38:4: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'while' n = c - '0'; ^ main.cpp: In function 'int main()': main.cpp:67:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("cutii.out", "w", stdout); ^ main.cpp: In member function 'char InParser::read_ch()': main.cpp:19:29: 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, 4096, fin); ^