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26 lines
231 B
26 lines
231 B
int
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main() {
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int n;
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int t;
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int c;
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int p;
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c = 0;
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n = 2;
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while (n < 5000) {
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t = 2;
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p = 1;
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while (t*t <= n) {
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if (n % t == 0)
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p = 0;
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t++;
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}
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n++;
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if (p)
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c++;
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}
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if (c != 669)
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return 1;
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return 0;
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}
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