Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:36:23: error: ‘M’ was not declared in this scope for (scanf("%d", &M); M; --M) ^ user.cpp:41:17: error: ‘Res’ was not declared in this scope printf("%d\n", Res); ^ user.cpp:8:39: warning: unused variable ‘k’ [-Wunused-variable] int a,b,x1,y1,n,m,x2,y2,n1,m1,i,j,k,ok,U; ^ user.cpp: At global scope: user.cpp:43:5: error: ‘g’ does not name a type g<<n1<<' '<<m1; ^ user.cpp:44:5: error: expected unqualified-id before ‘return’ return 0; ^ user.cpp:45:1: error: expected declaration before ‘}’ token } ^