Compilare: main.cpp: In function 'int get(int, int, int, int)': main.cpp:35:13: warning: unused variable 'opend' [-Wunused-variable] int opend=(dr-mij)-an[p*2+1]; ^~~~~ main.cpp: In function 'int main()': main.cpp:46:13: warning: unused variable 's' [-Wunused-variable] int n,i,s,q; ^ main.cpp: In function 'int get(int, int, int, int)': main.cpp:42:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ main.cpp: In function 'int main()': main.cpp:50:23: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d",&n); ^ main.cpp:53:34: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d",&v[n-i-1]); ^