1553A - Digits Sum - CodeForces Solution

math number theory *800

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Python Code: 

for i in range(int(input())):
    a = int(input())
    print((a+1)//10)

C++ Code: 

#include<bits/stdc++.h>
 using namespace std;
    
int main(){
    int t;
    cin>>t;
    while(t--){
        long long int n;
        cin>>n;
        long long int ans=n/10;
        if(n%10==9) ans++;
        cout<<ans<<endl;
    }
    return 0;
}


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