蒟蒻求助

P1055 [NOIP2008 普及组] ISBN 号码

Tudoudidan @ 2024-03-19 19:29:07

#include <bits/stdc++.h>
using namespace std;
int main(){
    long long a,b,c,d,e=0,s=0;
    char f;
    scanf("%d-%d-%d-%c",&a,&b,&c,&f);
    e=a*100000000+b*100000+c;
    for(int i = 9;i>=0;--i){
        s+=(e%10)*i;
        e/=10;
    }
    s=s%11;
    if(f-'0'==s||(s==10&&f=='X')){
        cout<<"Right";
    }
    else{
        printf("%d-%d-%d-",a,b,c);
        cout<<((s==10)?'X':s);
    }
    return 0;
}

样例也过了,但不知为何就是爆零(T_T) 请教一下各位大神,我的代码出了什么问题

by OutsideR_ @ 2024-03-19 19:32:53

@Tudoudidan 70pts修改

#include <bits/stdc++.h>
using namespace std;
int a,b,c,d,e=0,s=0;
char f;
int main(){
    scanf("%d-%d-%d-%c",&a,&b,&c,&f);
    e=a*100000000+b*100000+c;
    for(int i = 9;i>=0;--i){
        s+=(e%10)*i;
        e/=10;
    }
    s=s%11;
    if(f-'0'==s||(s==10&&f=='X')){
        cout<<"Right"<<endl;
        return 0;
    }
    else{
        printf("%d-%d-%d-",a,b,c);
        cout<<((s==10)?'X':s);
    }
    return 0;
}

问题：scanf不好用%d输入long long且 long long定义在主函数内会随机赋值

by Tudoudidan @ 2024-03-19 19:36:37

@OutsideR_ 多谢大佬

by OutsideR_ @ 2024-03-19 19:41:08

@Tudoudidan 

#include <bits/stdc++.h>
using namespace std;
int a,b,c,d,e=0,s=0;
char f;
int main(){
    scanf("%d-%d-%d-%c",&a,&b,&c,&f);
    e=a*100000000+b*100000+c;
    for(int i=9;i>=0;i--){
        s+=(e%10)*i;
        e/=10;
    }
    s=s%11;
    if(f-'0'==s||(s==10 &&f=='X')){
        cout<<"Right"<<endl;
        return 0;
    }
    else{
        printf("%d-%d-%d-",a,b,c);
     //比较这一段改了就对了
        if(s==10){
            cout<<'X'<<endl;
            return 0;
        }
        cout<<s<<endl;
        return 0;
    }
    return 0;
}

by Tudoudidan @ 2024-03-19 19:44:30

@OutsideR_ 多谢大佬帮助

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