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- //Bismillahir Rahmanir Rahim
- /******Harun Or Rashid******/
- /***********Template Starts Here***********/
- #include<iostream>
- #include<cstdio>
- #include<cstring>
- #include<cmath>
- #include<cctype>
- #include<cstdlib>
- #include<cassert>
- #include<string>
- #include<vector>
- #include<set>
- #include<stack>
- #include<queue>
- #include<map>
- #include<algorithm>
- using namespace std;
- #define MEM(a,b) memset(a,b,sizeof(a))
- #define CLR(a) memset(a,0,sizeof(a))
- #define MAX 10000
- #define MIN(a,b) ((a)>(b)?(b):(a))
- #define ABS(a) ((a)>0? (a):(-(a)))
- #define SQ(a) ((a)*(a))
- #define SZ(a) (int)a.size()
- #define FORN(i,n) for(i=1;i<=n;i++)
- #define FORAB(i,a,b) for(i=a;i<=b;i++)
- #define ALL(V) V.begin(),V.end()
- #define pb(a) push_back(a)
- #define pr(a) cout<<a<<endl
- #define SQR(a) ((a)*(a))
- #define pf printf
- #define sf scanf
- #define swap(a,b) (a ^= b, b ^= a, a ^= b)
- #define PI acos(-1)
- #define x first
- #define y second
- #define eps 1e-7
- typedef int D;
- typedef long long int LLD;
- typedef unsigned long long int LLU;
- typedef vector<D> VI;
- typedef set<D> SI;
- typedef vector<D>::iterator Viti;
- /***********Template Ends Here***********/
- int phi(int n)
- {
- int result=n;
- if(n==1) return n;
- if(n%2==0)
- {
- result-=result/2;
- while(n%2==0) n/=2;
- }
- for(int i=3; i*i<=n; i+=2)
- {
- if(n%i==0)
- {
- result-=result/i;
- while(n%i==0) n/=i;
- }
- }
- if(n>1) result-=result/n;
- return result;
- }
- int main()
- {
- int T,n,i,result,dp[MAX+1];
- dp[0]=dp[1]=0;
- dp[2]=1;
- for(i=3; i<=MAX; i++)
- dp[i]=phi(i)+dp[i-1];
- cin>>T;
- while(T--)
- {
- cin>>n;
- cout<<dp[n]<<endl;
- }
- return 0;
- }
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