Compilare: main.cpp: In function 'int main()': main.cpp:33:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < sir.size(); i++){ ~~^~~~~~~~~~~~ main.cpp:37:27: warning: array subscript has type 'char' [-Wchar-subscripts] tata[i] = ind[prEl]; ^ main.cpp:39:19: warning: array subscript has type 'char' [-Wchar-subscripts] if(dp[prEl]+1 > dp[ultEl]){ ^ main.cpp:39:33: warning: array subscript has type 'char' [-Wchar-subscripts] if(dp[prEl]+1 > dp[ultEl]){ ^ main.cpp:40:21: warning: array subscript has type 'char' [-Wchar-subscripts] dp[ultEl] = dp[prEl]+1; ^ main.cpp:40:32: warning: array subscript has type 'char' [-Wchar-subscripts] dp[ultEl] = dp[prEl]+1; ^ main.cpp:41:22: warning: array subscript has type 'char' [-Wchar-subscripts] ind[ultEl] = i; ^ main.cpp:44:20: warning: array subscript has type 'char' [-Wchar-subscripts] if(dp[ultEl] > maxVal){ ^ main.cpp:45:30: warning: array subscript has type 'char' [-Wchar-subscripts] maxVal = dp[ultEl]; ^