Eroare de compilare: user.cpp:7:17: error: mem.h: No such file or directory user.cpp:16: warning: non-local variable ‘<anonymous struct> c [16000]’ uses anonymous type user.cpp:20: error: expected initializer before ‘gr1’ user.cpp: In function ‘void readdata()’: user.cpp:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp: In function ‘void solve()’: user.cpp:67: error: ‘gr1’ was not declared in this scope user.cpp:67: error: ‘_fmemset’ was not declared in this scope user.cpp:68: error: ‘gr2’ was not declared in this scope user.cpp:70: error: ‘how’ was not declared in this scope user.cpp:82: error: ‘_fmemcpy’ was not declared in this scope user.cpp: In function ‘void sift2(int)’: user.cpp:129: error: ‘how’ was not declared in this scope user.cpp:131: error: ‘how’ was not declared in this scope user.cpp:133: error: ‘how’ was not declared in this scope user.cpp: In function ‘void heapsort2()’: user.cpp:144: error: ‘how’ was not declared in this scope user.cpp: At global scope: user.cpp:148: error: ‘::main’ must return ‘int’