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22 lines
280 B
C
22 lines
280 B
C
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#include <stdio.h>
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int main() {
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int n, sum = 0;
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scanf("%d", &n);
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for (int i = 1; i < n; i++) {
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if (n % i == 0) {
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sum += i;
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}
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}
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if (sum == n) {
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printf("YES\n");
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} else {
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printf("NO\n");
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}
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return 0;
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}
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