42 lines
777 B
Java
42 lines
777 B
Java
package chelper;
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import java.util.HashSet;
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import java.util.Set;
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import io.InputReader;
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import io.OutputWriter;
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import misc.SimpleSavingChelperSolution;
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public class A extends SimpleSavingChelperSolution {
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public void solve(int testNumber, InputReader in, OutputWriter out) {
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wrapSolve(testNumber, in, out);
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}
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@Override
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public void solve(int testNumber) {
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int n = in.nextInt();
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int x = in.nextInt();
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int[] a = in.nextIntArray(n);
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Set<Integer> set = new HashSet<>();
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for (int i = 0; i < n; i++) {
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set.add(a[i]);
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}
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int ans = 0;
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for (int i = 0; i < 1000; i++) {
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if (i < x && !set.contains(i)) {
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ans++;
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}
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if (i == x && set.contains(i)) {
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ans++;
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}
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}
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out.println(ans);
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}
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}
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