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https://github.com/wczffl-503/OI-Codes.git
synced 2025-05-11 00:30:27 +08:00
36 lines
516 B
C++
36 lines
516 B
C++
#include <iostream>
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#include <iomanip>
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#include <cstring>
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#include <cstdio>
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#include <ctime>
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#include <cmath>
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typedef long long l;
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typedef double d;
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typedef char c;
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using namespace std;
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int main(){
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c a[1000];
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l b[1000],c=1,sum=0;
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cin >>a;
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for(int i=0;i<strlen(a);i++){
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if(i==1 || i==5 || i==11){
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continue;
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}
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b[i]=a[i]-48;
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}
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for(int i=0;i<strlen(a);i++){
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if(i==1 || i==5 || i==11){
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continue;
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}
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sum+=c*b[i];
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c++;
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}
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if(sum%11==10){
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cout <<"X";
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}
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else{
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cout <<sum%11;
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}
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return 0;
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}
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