运行 ID: 102303

Main.cc:4:5: error: ‘n’ does not name a type
 int n,ans; signed main()
     ^
Main.cc: In function ‘int main()’:
Main.cc:5:8: error: ‘n’ was not declared in this scope
 { cin>>n; for(int i=1;i<=n;i++){ cin>>a[i]; ans+=abs(a[i]-a[i-1]); } cout<>n; for(int i=1;i<=n;i++){ cin>>a[i]; ans+=abs(a[i]-a[i-1]); } cout<>n; for(int i=1;i<=n;i++){ cin>>a[i]; ans+=abs(a[i]-a[i-1]); } cout<>n; for(int i=1;i<=n;i++){ cin>>a[i]; ans+=abs(a[i]-a[i-1]); } cout<>n; for(int i=1;i<=n;i++){ cin>>a[i]; ans+=abs(a[i]-a[i-1]); } cout<>n; for(int i=1;i<=n;i++){ cin>>a[i]; ans+=abs(a[i]-a[i-1]); } cout<>n; for(int i=1;i<=n;i++){ cin>>a[i]; ans+=abs(a[i]-a[i-1]); } cout<