Compilare: user.cpp: In function ‘int main()’: user.cpp:64:23: warning: operation on ‘m’ may be undefined [-Wsequence-point] h[++m] = m; ^ user.cpp:58:9: warning: unused variable ‘timp’ [-Wunused-variable] int timp = 0, dif; ^ user.cpp:58:19: warning: unused variable ‘dif’ [-Wunused-variable] int timp = 0, dif; ^ user.cpp:54:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (in, "%d", &n); ^ user.cpp:56:46: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (in, "%d%d", &v[i].t, &v[i].p); ^