Compilare: main.cpp: In function 'int main()': main.cpp:9:19: warning: unused variable 'nr' [-Wunused-variable] int x,y,n,p,i,nr,k,x1,y1,c,b; ^~ main.cpp:39:23: warning: 'y1' may be used uninitialized in this function [-Wmaybe-uninitialized] if(c==x1 and b==y1) ~^~~~ main.cpp:39:13: warning: 'x1' may be used uninitialized in this function [-Wmaybe-uninitialized] if(c==x1 and b==y1) ~^~~~ main.cpp:40:21: warning: 'k' may be used uninitialized in this function [-Wmaybe-uninitialized] fout<<k-i<<endl,i=p+1; ^