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20 lines
491 B
C++
20 lines
491 B
C++
//http://blog.163.com/oi_boy/blog/static/209415175201263052124756/
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//http://www.voidcn.com/blog/zzx2015/article/p-4501316.html
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#include <cstdio>
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int n, k, p, f, ans, a[50], b[50], s[50];
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int main()
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{
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scanf("%d%d%d", &n, &k, &p);
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for (int i = 1, c, v; i <= n; i++)
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{
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scanf("%d%d", &c, &v);
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if (v <= p) f = i;
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if (f >= s[c]) b[c] = a[c];
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ans += b[c];
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a[c]++;
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s[c] = i;
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}
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printf("%d", ans);
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return 0;
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}
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