Compilare: user.cpp: In function ‘int compute(Edge)’: user.cpp:101:12: warning: ‘t’ may be used uninitialized in this function [-Wmaybe-uninitialized] return t; ^ user.cpp: In function ‘int main()’: user.cpp:123:32: warning: ‘t’ may be used uninitialized in this function [-Wmaybe-uninitialized] out << compute(edges[id[n]]) << '\n'; ^ user.cpp:118:40: warning: ‘t’ may be used uninitialized in this function [-Wmaybe-uninitialized] edges[edges[id[i]].left].x2 = t; ^