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  • #include<bits/stdc++.h>
    using namespace std;
    int main() {
    int x1,y1,x2,y2;
    cin>>x1>>y1>>x2>>y2;
    int dx=x2-x1;
    int dy=y2-y1;
    int vx=-dy;
    int vy=dx;
    int x3=x2+vx;
    int y3=y2+vy;
    int x4=x1+vx;
    int y4=y1+vy;
    cout<<x3<<" "<<y3<<" "<<x4<<" "<<y4<<endl;
    return 0;
    }

    1周前 来自 浙江

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