$O(1)$
#include<cstdio> int f(int x, int y) { int s = 0; for (; x; x /= y) s += x%y; return s; } int main() { for (int i = 1e3; i < 1e4; i++) if (f(i, 10) == f(i, 16) && f(i, 12) == f(i, 16)) printf("%d\n", i); return 0; }
#include<cstdio> int f(int x, int y) { int s = 0; for (; x; x /= y) s += x%y; return s; } int main() { for (int i = 1e3; i < 1e4; i++) if (f(i, 10) == f(i, 16) && f(i, 12) == f(i, 16)) printf("%d\n", i); return 0; }
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