求助，初学者不求简化，但就是70分，自己尝试了很多数值好像都没问题

P1307 [NOIP2011 普及组] 数字反转

BenChaut @ 2022-10-17 22:45:55


#include <stdio.h>
#include <math.h>
int main()
{
    long long a, b = 0;
    scanf("%lld", &a);
    if (a == 0)
    {
        printf("0");
    }
    else if (a > 0)
    {
        again:
        a = a / 10;
        if (a % 10 ==0 )
        {
            goto again;
        }
        while(a)
        {
            long long c = a % 10;

                printf("%lld", c);

            a = a / 10;
        }

    }
    else
    {
        long long d = (long long)fabsf(a);
            flag:
            d = d / 10;
            if (d % 10 == 0)
            {
                goto flag;
            }
        printf("-");
            while (d)
            {
                long long e = d % 10;

                    printf("%lld", e);

                d = d / 10;
            }

    }

    return 0;
}

by ryf_loser @ 2022-10-17 22:59:34

@BenChaut 

#include <bits/stdc++.h>
using namespace std;
int main(){
char n;
int s=0,w=0,i=1,t=0;
int a[11];
int b[11];
b[1]=1;
scanf("%c",&n);
if (n<48){
t=1;
scanf ("%c",&n);
}
while(int(n)>47){
    w++;
    a[w]=char(n);
    a[w]-=48;
    i++; 
    b[i]=b[i-1]*10;
    scanf("%c",&n);
}
i--;
do{
s=a[w]*b[i]+s;
i--;
w--;    
}while (w>0);
if (t)
printf("-");
printf ("%d",s);
return 0;
}

by BenChaut @ 2022-10-17 23:14:37

@ryf20100124 看懂了dalao写的了，可我想知道我的有啥问题呢，因为这是我的第一反应

by JayUser @ 2022-10-26 16:48:19

@BenChaut 尽量还是少用goto语句，太不实用了很难debug

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