Compilare: user.cpp: In function ‘int main()’: user.cpp:35:11: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] f >> s+1; ^ user.cpp:44:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] for (j = 0; j < tf[d].size(); j++) ^ user.cpp:44:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j = 0; j < tf[d].size(); j++) ^ user.cpp:45:37: warning: array subscript has type ‘char’ [-Wchar-subscripts] mat[i][i].push_back(tf[d][j]); ^ user.cpp:54:48: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (I = 0; I < mat[i][k].size(); I++) { ^ user.cpp:55:54: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (J = 0; J < mat[k+1][j].size(); J++) { ^ user.cpp:59:46: warning: array subscript has type ‘char’ [-Wchar-subscripts] for (t = 0; t < cum[c][d].size(); t++) ^ user.cpp:59:49: warning: array subscript has type ‘char’ [-Wchar-subscripts] for (t = 0; t < cum[c][d].size(); t++) ^ user.cpp:59:56: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (t = 0; t < cum[c][d].size(); t++) ^ user.cpp:60:46: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (dd.find(cum[c][d][t])==dd.end()) { ^ user.cpp:60:49: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (dd.find(cum[c][d][t])==dd.end()) { ^ user.cpp:61:59: warning: array subscript has type ‘char’ [-Wchar-subscripts] mat[i][j].push_back( cum[c][d][t] ); ^ user.cpp:61:62: warning: array subscript has type ‘char’ [-Wchar-subscripts] mat[i][j].push_back( cum[c][d][t] ); ^ user.cpp:62:48: warning: array subscript has type ‘char’ [-Wchar-subscripts] dd.insert(cum[c][d][t]); ^ user.cpp:62:51: warning: array subscript has type ‘char’ [-Wchar-subscripts] dd.insert(cum[c][d][t]); ^ user.cpp:77:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < mat[1][n].size()&&ok; i++) { ^