Compilare: main.cpp: In function 'int main()': main.cpp:35:13: warning: unused variable 'x' [-Wunused-variable] 35 | int x,y; | ^ main.cpp:35:15: warning: unused variable 'y' [-Wunused-variable] 35 | int x,y; | ^ main.cpp:42:36: warning: 'r' may be used uninitialized [-Wmaybe-uninitialized] 42 | fout << abs(dp[st[r]] - dp[dr[r]]) << '\n'; | ~~~~^ main.cpp:32:12: note: 'r' was declared here 32 | int n, r; | ^