Compilare: main.cpp: In function 'int main()': main.cpp:17:19: warning: suggest parentheses around '+' inside '>>' [-Wparentheses] fin>>ch>>s+1; ~^~ main.cpp:20:19: warning: array subscript has type 'char' [-Wchar-subscripts] L[s[1]].push_back(ch); ^ main.cpp:21:18: warning: array subscript has type 'char' [-Wchar-subscripts] else a[ch].push_back(make_pair(s[1],s[2])); ^ main.cpp:31:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses] fin>>s+1; ~^~ main.cpp:40:36: warning: array subscript has type 'char' [-Wchar-subscripts] for (int it=0;it<L[s[i]].size();it++) ^ main.cpp:40:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int it=0;it<L[s[i]].size();it++) ~~^~~~~~~~~~~~~~~ main.cpp:41:32: warning: array subscript has type 'char' [-Wchar-subscripts] dp[i][i][L[s[i]][it]-65] = 1; ^ main.cpp:69:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0;i<v.size() && !ok;i++){ ~^~~~~~~~~