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54
S2OJ/1539/1539.cpp
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54
S2OJ/1539/1539.cpp
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#include <iostream>
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#include <algorithm>
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using std::cin;
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using std::cout;
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const char endl = '\n';
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int t, l, r, a, b, c, ans;
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int p, cnt, primes[10000005], sum[10000005];
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bool not_prime[10000005];
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inline bool check(int x) {
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int sum = 0;
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while (x) {
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sum += x % 10;
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x /= 10;
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}
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return !not_prime[sum];
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}
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int main() {
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std::ios::sync_with_stdio(false);
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cin.tie(nullptr);
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for (int i = 2; i <= 10000000; i++) {
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if (!not_prime[i]) primes[++p] = i;
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for (int j = 1; j <= p && primes[j] * i <= 10000000; j++) {
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not_prime[primes[j] * i] = true;
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if (i % primes[j] == 0) break;
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}
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}
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for (int i = 1; i <= 10000000; i++) {
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if (!not_prime[i] && check(i)) sum[i] = sum[i - 1] + 1;
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else sum[i] = sum[i - 1];
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}
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cin >> t >> l >> r >> a >> b >> c;
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while (t--) {
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ans ^= sum[r] - sum[l - 1];
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l = ((l ^ b) + a) % c + 1;
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r = ((r ^ b) + a) % c + 1;
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if (l > r) std::swap(l, r);
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}
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cout << ans << endl;
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return 0;
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}
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