FlyingAnt @ 2017-03-21 21:07:48
#include<iostream>
#include<cstdio>
#include<cstring>
using namespace std;
int main()
{
char a[100000001];
int flag=0;
scanf("%s",&a);
if(a[0]=='-')
{
cout<<a[0];
for(int i=strlen(a)-1;i>=1;i--)
{
if(a[i]=='0'&&flag==0) continue;
if(a[i]!='0') flag=1;
cout<<a[i];
}
return 0;
}
else
{
for(int i=strlen(a)-1;i>=0;i--)
{
if(a[i]=='0') continue;
cout<<a[i];
}
return 0;
}
}#include<iostream>
#include<cstdio>
#include<cstring>
using namespace std;
int main()
{
char a[100000001];
int flag=0;
scanf("%s",&a);
if(a[0]=='-')
{
cout<<a[0];
for(int i=strlen(a)-1;i>=1;i--)
{
if(a[i]=='0'&&flag==0) continue;
if(a[i]!='0') flag=1;
cout<<a[i];
}
return 0;
}
else
{
for(int i=strlen(a)-1;i>=0;i--)
{
if(a[i]=='0') continue;
cout<<a[i];
}
return 0;
}
}by FlyingAnt @ 2017-03-21 21:25:55
解决了少判断了
by kaixinxiaopang @ 2017-03-21 22:17:23
#include<iostream>
#include<cstring>
#include<cstdio>
using namespace std;
char ny[1000];
int main()
{
char *s=ny,tmp;
int ans;
cin>>s;
if(*s=='-')
{
cout<<*s;
s++;
}
int l=0,r=strlen(s)-1;
while(l<=r)
swap(s[l],s[r]),l++,r--;
sscanf(s,"%d",&ans);
cout<<ans<<endl;
return 0;
}by 城里最帅那个 @ 2017-04-02 11:24:31
#include<cstdio>
using namespace std;
char a[19];
int f = 1,ii=0;
int main() {
char ch = getchar();
while ((ch >= '0'&&ch <= '9') || (ch == '-')){
if (ch == '-') f = -f;
else a[ii++] = ch;
ch = getchar();
};
int flg = 0;
for (int i = 18;i >= 0;i--) {
if (a[i] != '0') {
flg = i-1;
break;
}
}
if (f == -1) printf("-");
bool yes = false;
for (int i = flg;i >=0;i--) {
if(a[i]&&a[i]!='0'||yes) printf("%c",a[i]),tes=true;
}
getchar();
return 0;
}