Compilare: main.cpp: In function 'int main()': main.cpp:13:21: warning: unused variable 'p2' [-Wunused-variable] int i , n , j , p2 , poz , val , st , dr , mid; ^~ main.cpp:13:26: warning: unused variable 'poz' [-Wunused-variable] int i , n , j , p2 , poz , val , st , dr , mid; ^~~ main.cpp:15:25: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d",&n); ^ main.cpp:17:32: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d",&v[i]); ^ main.cpp:62:33: warning: 'mid' may be used uninitialized in this function [-Wmaybe-uninitialized] sum = sum + sp[val][mid % 2][mid + 1]; ~~~~^~~