18 lines
293 B
Java
18 lines
293 B
Java
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package LanQiaoOJ;
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public class <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>2 {
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public static void main(String [] args) {
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int count=0;
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for(int i=1;i<=2020;i++) {
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int x=i;
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while(x>0) {
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if(x%10==2) {
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count++;
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}
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x/=10;
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}
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}
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System.out.print(count);
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}
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}
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