Codeforces Round #411 (Div. 1) Archive

import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.ArrayDeque; import java.util.ArrayList; import java.util.Arrays; import java.util.StringTokenizer; public class Div1_411F { int numTV; int A; int B; ArrayList<Integer> tAList; boolean tVAct; int numM; int cTime = 0; int …

#include <stdio.h> int n; int main() { scanf("%d",&n); if(n%4>1)return printf("NO\n"),0; printf("YES\n"); for(int i=1;i<n;i+=4) { if(n%4)printf("%d %d\n%d %d\n%d %d\n",i+2,n,i+2,i+3,i+3,n); else printf("%d %d\n",i+2,i+3); printf("%d %d\n",i,i+2); printf("%d %d\n",i+1,i+3); printf("%d %d\n",i+1,i+2); printf("%d %d\n",i,i+3); if(n%4)printf("%d %d\n%d %d\n%d %d\n",i,n,i,i+1,i+1,n); else printf("%d …