Compilare: user.cpp: In function ‘int main()’: user.cpp:22:13: warning: unused variable ‘cq’ [-Wunused-variable] int cq, cp; ^ user.cpp:22:17: warning: variable ‘cp’ set but not used [-Wunused-but-set-variable] int cq, cp; ^ user.cpp:11:15: warning: unused variable ‘k’ [-Wunused-variable] int i, j, k; ^ user.cpp:10:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &n, &m); ^ user.cpp:15:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &val); ^ user.cpp:20:36: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &q, &p); ^