Compilare: user.cpp: In function ‘int main()’: user.cpp:56:5: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation] for(int i=1; i<=n; i++) ^~~ user.cpp:58:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘for’ g<<suma; ^ user.cpp: In function ‘void prim()’: user.cpp:44:44: warning: ‘x’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(a[x][i]!=oo) {d[i]=a[x][i]; t[i]=x;} ~~~~^~