14行第二个条件判断是多余的 #16
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14行第二个条件判断是多余的 #16
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WangQiuc
approved these changes
May 15, 2020
WangQiuc
reviewed
May 15, 2020
| @@ -11,7 +11,7 @@ int main() { | |||
| for(int m = 1; m < maxn; m++) { | |||
| int x = m, y = m; | |||
| while(x > 0) { y += x % 10; x /= 10; } | |||
| if(ans[y] == 0 || m < ans[y]) ans[y] = m; | |||
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但还是需要判断y < maxn，不然y会溢出ans[maxn]
if(ans[y] == 0 && y < maxn) ans[y] = m;
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ans[m] != 0就说明已经被小的生成元填充过了。