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public class Ch2 {
public static void main(String[] args) {
System.out.println(tax_amount(10, new int[][]{{3, 50}, {7, 10}, {12, 25}}));
System.out.println(tax_amount(2, new int[][]{{1, 0}, {4, 25}, {5, 50}}));
System.out.println(tax_amount(0, new int[][]{{2, 50}}));
}
private static double tax_amount(int income, int[][] taxes) {
int res = 0, prev = 0;
for (var e : taxes) {
res += Math.max(0, Math.min(income, e[0]) - prev) * e[1];
prev = e[0];
}
return res / 100.0;
}
}
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