Compilare: user.cpp: In function ‘int main()’: user.cpp:32:11: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] f >> s+1; ^ user.cpp:46:48: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (I = 0; I < mat[i][k].size(); I++) { ^ user.cpp:47:54: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (J = 0; J < mat[k+1][j].size(); J++) { ^ user.cpp:51:46: warning: array subscript has type ‘char’ [-Wchar-subscripts] for (t = 0; t < cum[c][d].size(); t++) { ^ user.cpp:51:49: warning: array subscript has type ‘char’ [-Wchar-subscripts] for (t = 0; t < cum[c][d].size(); t++) { ^ user.cpp:51:56: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (t = 0; t < cum[c][d].size(); t++) { ^ user.cpp:52:49: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (l < n-1 && cum[c][d][t] == 'S') ^ user.cpp:52:52: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (l < n-1 && cum[c][d][t] == 'S') ^ user.cpp:54:38: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (cum[c][d][t] <=0) ^ user.cpp:54:41: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (cum[c][d][t] <=0) ^ user.cpp:56:55: warning: array subscript has type ‘char’ [-Wchar-subscripts] mat[i][j].push_back( cum[c][d][t] ); ^ user.cpp:56:58: warning: array subscript has type ‘char’ [-Wchar-subscripts] mat[i][j].push_back( cum[c][d][t] ); ^ user.cpp:71:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < mat[1][n].size()&&ok; i++) { ^