Compilare: user.cpp: In function ‘int main()’: user.cpp:37:34: warning: variable ‘k’ set but not used [-Wunused-but-set-variable] int n, m, nr1, nr2, nr3, i, j, k, ok, d, x, y, min, p; ^ user.cpp:37:44: warning: unused variable ‘x’ [-Wunused-variable] int n, m, nr1, nr2, nr3, i, j, k, ok, d, x, y, min, p; ^ user.cpp:37:47: warning: unused variable ‘y’ [-Wunused-variable] int n, m, nr1, nr2, nr3, i, j, k, ok, d, x, y, min, p; ^ user.cpp:38:7: warning: unused variable ‘g’ [-Wunused-variable] int g, h, prim, ultim, dist, l1, c1, l, c, ult; ^ user.cpp:38:10: warning: unused variable ‘h’ [-Wunused-variable] int g, h, prim, ultim, dist, l1, c1, l, c, ult; ^ user.cpp:40:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &n, &m); ^