Compilare: user.cpp: In function ‘void dfsC(int)’: user.cpp:57:31: warning: variable ‘fiu2’ set but not used [-Wunused-but-set-variable] int mx1=-1, mx2=-1, fiu1, fiu2; ^ user.cpp: In function ‘void dfsD(int)’: user.cpp:93:62: warning: variable ‘fiu3’ set but not used [-Wunused-but-set-variable] int mx1=0, mx2=0, mx3=0, mx1arb=0, mx2arb=0, fiu1, fiu2, fiu3, arb1=0, arb2=0; ^ user.cpp:93:76: warning: variable ‘arb2’ set but not used [-Wunused-but-set-variable] int mx1=0, mx2=0, mx3=0, mx1arb=0, mx2arb=0, fiu1, fiu2, fiu3, arb1=0, arb2=0; ^ user.cpp: In function ‘void dfsC(int)’: user.cpp:84:37: warning: ‘fiu1’ may be used uninitialized in this function [-Wmaybe-uninitialized] C[fiu]=max(C[fiu], mx2+1); ^ user.cpp: In function ‘void dfsD(int)’: user.cpp:148:13: warning: ‘fiu2’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(fiu==fiu2) ^ user.cpp:138:9: warning: ‘fiu1’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(fiu==fiu1) ^