Compilare: user.cpp: In function ‘char getChar()’: user.cpp:25:52: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] if(pos == BUF) pos = 0, fread(buf, 1, BUF, fin); ^ user.cpp: In function ‘int main()’: user.cpp:128:32: warning: ‘ans’ may be used uninitialized in this function [-Wmaybe-uninitialized] answer[q[i].idx] = ans1; ^ user.cpp:109:13: warning: ‘maxfrq’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(frq[v[moright]] > maxfrq) ^ user.cpp:107:26: warning: ‘moright’ may be used uninitialized in this function [-Wmaybe-uninitialized] frq[v[moright]]++; ^ user.cpp:120:25: warning: ‘moleft’ may be used uninitialized in this function [-Wmaybe-uninitialized] frq[v[moleft]]++; ^