Compilare: main.cpp: In function 'void solve(int)': main.cpp:60:29: warning: array subscript has type 'char' [-Wchar-subscripts] dp[i] = aux[b[i]].first + 1; ^ main.cpp:61:31: warning: array subscript has type 'char' [-Wchar-subscripts] from[i] = aux[b[i]].second; ^ main.cpp:70:24: warning: array subscript has type 'char' [-Wchar-subscripts] if(aux[a[i]].first < dp[i]) { ^ main.cpp:71:25: warning: array subscript has type 'char' [-Wchar-subscripts] aux[a[i]] = {dp[i], i}; ^ main.cpp: In function 'int main()': main.cpp:100:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses] cin >> a + 1 >> b + 1; ~~^~~ main.cpp:100:23: warning: suggest parentheses around '+' inside '>>' [-Wparentheses] cin >> a + 1 >> b + 1; ~~^~~ main.cpp:97:13: warning: unused variable 'i' [-Wunused-variable] int sz, i; ^ main.cpp:79:29: warning: 'id' may be used uninitialized in this function [-Wmaybe-uninitialized] id = from[id]; ~~~~~~~^ main.cpp:58:22: note: 'id' was declared here int cur = 0, id; ^~