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20 lines
610 B
C++
20 lines
610 B
C++
#include <cstdio>
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double min(double a, double b) { return a < b ? a : b; };
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double max(double a, double b) { return a > b ? a : b; };
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double dfs(double x, double y, int t)
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{
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if (t == 1) return max(x / y, y / x);
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double ans = 1e300;
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for (int i = 1; i <= t / 2; i++)
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ans = min(ans, min(
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max(dfs(x / t * i, y, i), dfs(x / t * (t - i), y, t - i)),
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max(dfs(x, y / t * i, i), dfs(x, y / t * (t - i), t - i))));
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return ans;
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}
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int main()
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{
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int n, m, k;
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scanf("%d%d%d", &n, &m, &k);
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printf("%.6lf", dfs(n, m, k));
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return 0;
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} |