제출 #1257844

#제출 시각아이디문제언어결과실행 시간메모리
1257844arnaaTrol (COCI19_trol)C++20
20 / 50
1096 ms412 KiB
#include<bits/stdc++.h> using namespace std; int digit(int x){ int jum=0; while(x!=0){ jum+=(x%10); x/=10; } if(jum>9){ return digit(jum); }else{ return jum; } } int main(){ int q; long long l,r; cin>>q; for(int i=1;i<=q;i++){ long long ans=0; cin>>l>>r; for(int j=l;j<=r;j++){ ans+=digit(j); } cout<<ans<<endl; } }
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