@[ababcrrr](/user/879389) 测试数据不保证有 `'\n'`
by MarchKid_Joe @ 2023-01-31 21:09:36
@[ababcrrr](/user/879389) 然后就是会爆 `long long` 的数据范围，因为 $1e20>2^{63}-1$
by MarchKid_Joe @ 2023-01-31 21:11:52
这个可以得到 95，因为有一个测试点爆 `long long` 了。
```cpp
#include<stdio.h>
#include<stdlib.h>
long long zhuan(long long n) {
long long i, j, x=0;
if (n == 0)return 0;
i = n; j = i % 10;
while (j == 0) {
i = i / 10; j = i % 10;
}
while (i != 0) {
x = x * 10 + j;
i = i / 10;
j = i % 10;
}
return x;
}
int main() {
char ch[1000] = { 0 },sh[1000]={0};
long long i, j=1, sum = 0, x,y;
i = 0;
ch[i] = getchar();
for (i = 1;i <= 20; i++) {
ch[i] = getchar();
if (ch[i] == '.') {
sh[0] = '.';
ch[i] = '\0';
x = (atoll)(ch);
scanf("%lld", &y);
while (y!=0&&y % 10 == 0) {
y = y / 10;
sh[j] = '0';
j++;
}
printf("%lld%s%lld", zhuan(x),sh, zhuan(y));
return 0;
}
if (ch[i] == '/') {
sh[0] = '/';
ch[i] = '\0';
x = (atoll)(ch);
scanf("%lld", &y);
printf("%lld%c%lld",zhuan(x),sh[0], zhuan(y));
return 0;
}
if (ch[i] == '%') {
x = 1;
sh[0] = '%';
ch[i] = '\0';
x = (atoll)(ch);
printf("%lld%c",zhuan(x),sh[0]);
return 0;
}
}
x = (atoll)(ch);
printf("%lld", zhuan(x));
return 0;
}
```
by MarchKid_Joe @ 2023-01-31 21:12:47
@[ababcrrr](/user/879389) 但是可以使用 `unsigned long long`，可以通过。
AC Code
```cpp
#include<stdio.h>
#include<stdlib.h>
#include <bits/stdc++.h>
using namespace std;
long long zhuan(long long n) {
long long i, j, x=0;
if (n == 0)return 0;
i = n; j = i % 10;
while (j == 0) {
i = i / 10; j = i % 10;
}
while (i != 0) {
x = x * 10 + j;
i = i / 10;
j = i % 10;
}
return x;
}
int main() {
char ch[1000] = { 0 },sh[1000]={0};
long long i, j=1, sum = 0, x,y;
i = 0;
ch[i] = getchar();
for (i = 1;i <= 20; i++) {
ch[i] = getchar();
if (ch[i] == '.') {
sh[0] = '.';
ch[i] = '\0';
x = (atoll)(ch);
scanf("%lld", &y);
while (y!=0&&y % 10 == 0) {
y = y / 10;
sh[j] = '0';
j++;
}
printf("%lld%s%lld", zhuan(x),sh, zhuan(y));
return 0;
}
if (ch[i] == '/') {
sh[0] = '/';
ch[i] = '\0';
x = (atoll)(ch);
scanf("%lld", &y);
printf("%lld%c%lld",zhuan(x),sh[0], zhuan(y));
return 0;
}
if (ch[i] == '%') {
x = 1;
sh[0] = '%';
ch[i] = '\0';
x = (atoll)(ch);
printf("%lld%c",zhuan(x),sh[0]);
return 0;
}
}
unsigned long long _x = 0;
for (int i = 20; i >= 0; i--)
if (ch[i] >= '0' && ch[i] <= '9')
_x = _x * 10 + ch[i] - '0';
printf("%llu", _x);
return 0;
}
```
by MarchKid_Joe @ 2023-01-31 21:19:48
@[MarchKid_Joe](/user/239163)
哇哇哇感谢大佬！！
by goallllout @ 2023-02-01 21:08:57