abababwosb @ 2024-06-27 16:37:42
#include <bits/stdc++.h>
using namespace std;
int main() {
int a, tag, ans;
cin >> a;
if (a == 0) {
cout << a;
return 0;
} else if (a < 0) {
tag = 1;
} else {
tag = 0;
}
while (a != 0) {
ans = ans * 10 + a % 10;
a /= 10;
}
if (tag == 1) {
cout << -abs(ans);
} else {
cout << abs(ans);
}
return 0;
}
by KellyH @ 2024-06-27 17:19:01
哪题
by gaoyunxuan0917 @ 2024-06-27 17:19:39
给题目
by KellyH @ 2024-06-27 17:23:01
@abababwosb 用数组做
by Mouger_xhx @ 2024-06-27 17:25:41
ans声明=0不然数据会乱的
by abababwosb @ 2024-06-27 17:29:24
有道理
by KellyH @ 2024-06-27 17:30:36
@abababwosb 可以弄一个a[10000005]的数组 然后先while语句输入,别忘了做一个几位数的统计(int n=0)(n++) 最后再for循环倒序输出就好了
by KellyH @ 2024-06-27 17:31:51
@abababwosb 你这个没把ans初始化为0呀
by Jayden_121 @ 2024-06-27 18:31:41
#include<bits/stdc++.h>
using namespace std;
int main(){
long long x;
cin>>x;
if(x<0){
//x==n;
x = -x;
cout<<"-";
}
long long y=0; //①漏掉初始值0
while(x>0){//②x>=0会死循环,x的最终结果就是0
y=y*10+x%10;
x=x/10;
}
cout<<y;
return 0;
}