Compilare: user.cpp: In function ‘int main()’: user.cpp:14:18: warning: unused variable ‘d’ [-Wunused-variable] int n, ma=0, d, x, p; ^ user.cpp:14:21: warning: unused variable ‘x’ [-Wunused-variable] int n, ma=0, d, x, p; ^ user.cpp:14:24: warning: unused variable ‘p’ [-Wunused-variable] int n, ma=0, d, x, p; ^ user.cpp:15:10: warning: unused variable ‘k’ [-Wunused-variable] bool k; ^ user.cpp:17:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &n); ^ user.cpp:19:48: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &v[i][0], &v[i][1]); ^