Compilare: user.cpp: In function 'void kruskal(int)': user.cpp:53: warning: array subscript has type 'char' user.cpp:53: warning: array subscript has type 'char' user.cpp:55: warning: array subscript has type 'char' user.cpp:56: warning: array subscript has type 'char' user.cpp: In function 'int main()': user.cpp:80: warning: format '%d' expects type 'int*', but argument 2 has type 'char*' user.cpp:80: warning: format '%d' expects type 'int*', but argument 3 has type 'char*' user.cpp:80: warning: format '%d' expects type 'int*', but argument 4 has type 'char*'