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#include <bits/stdc++.h>
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using namespace std;
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int main() {
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int n;
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cin >> n;
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int res = 0; // 起始值是0,因为任何数与0进行异或都它本身
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while (n--) {
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int x;
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cin >> x;
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res ^= x;
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}
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if (res)
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puts("Yes"); // 异或值非零，必胜
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else
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puts("No"); // 异或值是零，必败
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return 0;
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} |
