23 lines
520 B
C++
23 lines
520 B
C++
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#include <bits/stdc++.h>
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using namespace std;
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const int N = 100 + 10;
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int n, a[N], res;
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int main() {
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while (scanf("%d", &n) && n) {
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res = 0;
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for (int i = 1; i <= n; i++) {
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scanf("%d", &a[i]);
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res ^= a[i];
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}
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if (res == 0)
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puts("0");
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else {
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int ans = 0;
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for (int i = 1; i <= n; i++)
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if ((res ^ a[i]) < a[i]) ans++;
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printf("%d\n", ans);
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}
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}
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return 0;
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}
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