Compilare: user.cpp: In function ‘int main()’: user.cpp:65:9: warning: unused variable ‘t’ [-Wunused-variable] int t, i, j; ^ user.cpp:65:12: warning: unused variable ‘i’ [-Wunused-variable] int t, i, j; ^ user.cpp:65:15: warning: unused variable ‘j’ [-Wunused-variable] int t, i, j; ^ user.cpp: In function ‘int optim(int, int)’: user.cpp:35:13: warning: ‘max_coloana’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(a[i][y] >= max_coloana && a[i][y] < a[x][y]) {max_coloana = a[i][y]; indice_maxc = i;} ^ user.cpp:54:46: warning: ‘indice_maxc’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(a[x][indice_maxl]>a[indice_maxc][x]) return optim(x, indice_maxl); ^ user.cpp:54:28: warning: ‘indice_maxl’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(a[x][indice_maxl]>a[indice_maxc][x]) return optim(x, indice_maxl); ^ user.cpp:49:13: warning: ‘max_linie’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(a[x][i] >= max_linie && a[x][i] < a[x][y]) {max_linie = a[x][i]; indice_maxl = i;} ^