Eroare de compilare: user.cpp:3:1: error: ‘ifstream’ does not name a type ifstream f("kbetray.in"); ^ user.cpp:4:1: error: ‘ofstream’ does not name a type ofstream g("kbetray.out"); ^ user.cpp: In function ‘int main()’: user.cpp:9:15: error: storage size of ‘x’ isn’t known {long N, K, x[],i,j,a[],b[],OK,aux,s; ^ user.cpp:9:23: error: storage size of ‘a’ isn’t known {long N, K, x[],i,j,a[],b[],OK,aux,s; ^ user.cpp:9:27: error: storage size of ‘b’ isn’t known {long N, K, x[],i,j,a[],b[],OK,aux,s; ^ user.cpp:11:1: error: ‘f’ was not declared in this scope f>>N>>K; ^ user.cpp:13:12: error: ‘n’ was not declared in this scope for(i=1;i<=n*2;i++) ^ user.cpp:19:12: error: ‘n’ was not declared in this scope for(i=1;i<=n*2-1;i++) ^ user.cpp:32:12: error: ‘n’ was not declared in this scope for(i=1;i<=n;i++) ^ user.cpp:37:5: error: ‘g’ was not declared in this scope g<<s; ^ user.cpp:9:29: warning: unused variable ‘OK’ [-Wunused-variable] {long N, K, x[],i,j,a[],b[],OK,aux,s; ^