Compilare: user.cpp: In function ‘void read()’: user.cpp:27:11: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] fin>>S+1; ^ user.cpp:24:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j; ^ user.cpp: In function ‘void maxflow()’: user.cpp:107:14: warning: unused variable ‘i’ [-Wunused-variable] int fmin,i,nod,x,flow=0; ^ user.cpp:107:20: warning: unused variable ‘x’ [-Wunused-variable] int fmin,i,nod,x,flow=0; ^ user.cpp: In function ‘void print()’: user.cpp:134:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j,nod; ^