delete pics to save space
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26
history_source/信息学奥赛一本通/1.5.1.8.cpp
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26
history_source/信息学奥赛一本通/1.5.1.8.cpp
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#include<cstdio>
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using namespace std;
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int main()
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{
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int n,m;
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scanf("%d%d",&n,&m);
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bool light[n+1]={0};
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for(int i=1;i<=n;i++) light[i]=1;
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for(int i=1;i<=m;i++)
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for(int j=1;j*i<=n;j++)
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light[j*i]=!light[j*i];
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bool flag=0;
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for(int i=1;i<=n;i++)
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{
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if(!light[i])
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{
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if(flag) printf(",%d",i);
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else{
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flag=1;
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printf("%d",i);
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}
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}
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}
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return 0;
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}
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