48 lines
1010 B
C++
48 lines
1010 B
C++
#include<bits/stdc++.h>
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#define cmin(a,b) (a>(b)?a=(b),1:0)
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#define cmax(a,b) (a<(b)?a=(b),1:0)
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#define dmin(a,b) ((a)<(b)?(a):(b))
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#define dmax(a,b) ((a)>(b)?(a):(b))
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namespace io
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{
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int F()
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{
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int n=0,F=0;
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char ch;
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while((ch=getchar())!='-'&&(ch<'0'||ch>'9'));
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ch=='-'?F=1:n=ch-'0';
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while((ch=getchar())>='0'&&ch<='9')n=n*10+ch-'0';
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return F?-n:n;
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}
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long long G()
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{
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long long n=0,F=0;
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char ch;
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while((ch=getchar())!='-'&&(ch<'0'||ch>'9'));
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ch=='-'?F=1:n=ch-'0';
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while((ch=getchar())>='0'&&ch<='9')n=n*10+ch-'0';
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return F?-n:n;
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}
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}
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int a[444444], pa,s[2];
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int b[444444],pb;
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int c[444444],pc;
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int main(int argc, char **argv)
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{
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auto *t=(new char);
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srand((unsigned long long)t);
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int n=(argc==1)?50000:atoi(argv[1]);
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printf("%d\n",n);
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for(int i=1;i<=n;++i){
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for(int j=0;j<=3;++j){
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a[++pa]=i;
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}
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}
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std::random_shuffle(a+1,a+4*n+1);
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for(int i=1;i<=4*n;++i){
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printf("%d%c",a[i]," \n"[i==4*n]);
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}
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delete t;
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return 0;
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}
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