Compilare: main.cpp: In function 'int main()': main.cpp:85:26: warning: variable 'n1' set but not used [-Wunused-but-set-variable] int crt,maxim,flow=0,n1,n2; ^~ main.cpp:85:29: warning: variable 'n2' set but not used [-Wunused-but-set-variable] int crt,maxim,flow=0,n1,n2; ^~ main.cpp:86:9: warning: unused variable 'nr' [-Wunused-variable] int nr=0; ^~