zhuyifan0826 @ 2025-01-08 17:08:43
#include <bits/stdc++.h>
using namespace std;
void f(long long a) {
long i = 0;
long long b = a, c = a;
while (b > 0) {
b /= 10;
i++;
}
int x[i], j = 0;
while (a > 0) {
x[j] = a % 10;
a /= 10;
j++;
}
if (c < 0) cout << '-';
for (int l = 0; l < i; l++) {
if (x[l] == 0 && l == 0) continue;
else cout << x[l];
}
return ;
}
int main() {
long long a;
cin >> a;
if (a == 0) {
cout << 0;
return 0;
}
f(a);
return 0;
}by Ybll_ @ 2025-01-08 17:17:06
@zhuyifan0826 字符串万岁
#include <bits/stdc++.h>
using namespace std;
int main()
{
string s;
bool flag=0;
cin>>s;
if(s=="0")
{
cout<<0;
return 0;
}
if(s[0]=='-')cout<<'-';
else s='-'+s;
for(int i=s.size()-1;s[i]!='-';i--)
{
if(s[i]>'0')flag=1;
if(flag)cout<<s[i];
}
}求关