Eroare de compilare: user.cpp:9:1: error: expected initializer before ‘string’ string n,x; ^ user.cpp: In function ‘int main()’: user.cpp:15:12: error: ‘n’ was not declared in this scope f>>n>>k; ^ user.cpp:17:9: error: ‘N’ was not declared in this scope N=n.length()/2; ^ user.cpp:33:35: error: ‘x’ was not declared in this scope if(c[nr][j] && nr!=j) { x[i]=j+'0'; break; } ^ user.cpp:34:27: error: ‘x’ was not declared in this scope else if(nr==j){ x[i]=j+'0'; break; } ^ user.cpp:38:12: error: ‘x’ was not declared in this scope g<<x[i]; ^ user.cpp:40:12: error: ‘x’ was not declared in this scope g<<x[N-i]; ^