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18 lines
378 B
C++
18 lines
378 B
C++
#include <cstdio>
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int que[1001], head, tail, m, n, cnt;
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bool mem[1001];
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int main()
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{
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scanf("%d%d", &m, &n);
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for (int i = 0, x; i < n; i++)
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{
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scanf("%d", &x);
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if (mem[x]) continue;
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if (tail - head == m) mem[que[head++]] = false;
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mem[que[tail++] = x] = true;
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cnt++;
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}
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printf("%d", cnt);
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return 0;
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}
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