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22 lines
364 B
22 lines
364 B
#include <iostream>
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using namespace std;
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int a, b, x, y;
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int main() {
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cin >> a >> b >> x >> y;
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int path1;
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int path2;
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int path3;
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int ans;
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path1 = abs(a - b);
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path2 = abs(a - x) + abs(y - b);
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path3 = abs(a - y) + abs(x - b);
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ans = path1;
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if (path2 < ans) {
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ans = path2;
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}
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if (path3 < ans) {
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ans = path3;
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}
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cout << ans << endl;
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}
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