74 条题解
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3
2351599120 LV 9 @ 2017-07-22 17:21:08
#include <iostream>
#include <iomanip>
#include <cmath>
#include <cstdio>
#include <cstring>
#include <cstdlib>
#include <algorithm>
using namespace std;
int main()
{
int a,b=0;
scanf("%d",&a);
while(a!=0)
{
b=10*b+a%10;
a/=10;
}
printf("%d",b);
return 0;
} -
2
aph。 (chenqianrong) LV 10 @ 2021-08-29 17:10:35
#include<bits/stdc++.h> using namespace std; long long s[11] = {},n,k = 0,a = 1; int main() { memset(s,0,sizeof(n)); cin>>n; for(int i = 1;i <= 10;i++) s[i] = n/a%10,a *= 10; a=1000000000; for(int i = 1;i <= 10;i++) k += s[i] * a,a /= 10; while(k % 10 == 0) k /= 10; cout<<k; return 0; } -
1
#include<iostream> #include<string> using namespace std; string s; int main(){ ios::sync_with_stdio(false); getline(cin, s); bool flag = 0; if(s[0] == '0'){ cout << '0'; return 0; }else if(s[0] == '-'){ cout << '-'; flag = 1; } int len = s.size() - 1; while(s[len] == '0')len--; for(int i = len;i >= flag; i--)cout << s[i]; return 0; } -
1
[CENSORED] LV 7 @ 2023-07-02 18:09:40
a = int(input()) b = 0 c = len(str(a)) ra = a if(a > 0): for e in range(1,c + 1): b += int(a / 10 ** (c - e)) * 10 ** (e) a -= int(a / 10 ** (c - e)) * 10 ** (c - e) b = int(b / 10) print(b) a = ra if(a < 0): c -= 1 for e in range(1,c + 1): b += int(a / 10 ** (c - e)) * 10 ** (e) a -= int(a / 10 ** (c - e)) * 10 ** (c - e) b = int(b / 10) print(b) a = ra if(a == 0): print('0')-
突然想到21行是不是写错了
-
-
1
Galileonardo LV 7 @ 2017-10-04 21:40:17
char类型读入倒读搞定。
#include <iostream>
using namespace std;char arr[10];
int i=0;
char a;
bool truefalse=false;int main() {
a=getchar();
if(a!='-'){
while(a!='\n'){
arr[i]=a;
a=getchar();i++;
}
}else{
truefalse=true;
a=getchar();
while(a!='\n'){
arr[i]=a;
a=getchar();i++;
}
}
if(truefalse==true){
cout<<'-';truefalse=false;
}
int number=0;
for(int j=i-1;j>=0;j--){
if(number==0){
if(arr[j]!='0'){
cout<<arr[j];number=1;truefalse=true;
}
}else{
cout<<arr[j];
}
}
if(truefalse==false){
cout<<0;
}
return 0;
} -
1
第一遍想错了N的范围
把数组开到了1000000000
但是居然AC了
仔细一看题发现并不需要
2333#include<cstring> using namespace std; char c[100]; int main() { int num,i,flag=0; cin>>c; num=strlen(c); if(c[0]=='-') { cout<<"-"; for(i=num-1;i>0;i--) { if(!flag) { if(c[i]=='0') continue; else { flag=1; cout<<c[i]; } } else cout<<c[i]; } } else for(i=num-1;i>=0;i--) { if(!flag) { if(c[i]=='0') continue; else { flag=1; cout<<c[i]; } } else cout<<c[i]; } return 0; } -
0
Little Black LV 7 @ 2017-10-01 09:06:50
500 3
150 300
100 200
470 471
-
0
so water
#include <iostream> #include <cstdio> #include <cstdlib> #include <cmath> #include <cstring> #include <algorithm> using namespace std; int main() { char a[10000]={0},w,i=0,n=1,e=0; w=getchar(); while(w!='\n'&&w!=EOF&&w!='\0') { if(i==0&&w=='-') printf("-"); else { i++; a[i]=w; } w=getchar(); } n=i; for(i=n;i>=1;i--) { if(e!=0||a[i]!='0') { e=1; printf("%c",a[i]); } } return 0; } -
0
Accepted
/usr/bin/ld.bfd: warning: /out/link.res contains output sections; did you forget -T?
状态 耗时 内存占用
#1 Accepted 1ms 256.0KiB
#2 Accepted 1ms 256.0KiB
#3 Accepted 1ms 256.0KiB
#4 Accepted 1ms 256.0KiB
#5 Accepted 1ms 256.0KiB
#6 Accepted 1ms 256.0KiB
#7 Accepted 1ms 256.0KiB
#8 Accepted 1ms 184.0KiB
#9 Accepted 1ms 256.0KiB
#10 Accepted 1ms 256.0KiB
代码var
s,x:string;
c,i:longint;
begin
readln(s);x:='';
if s[1]='-' then begin
for i:=length(s) downto 2 do x:=x+s[i];
val(x,c);writeln('-',c);
end
else begin
for i:=length(s) downto 1 do x:=x+s[i];
val(x,c);writeln(c);
end;
end. -
0
#include <cstdio> #include <iostream> using namespace std; int main(){ int num = 0; bool sign = false; cin >> num; if (num < 0) sign = true; int result = 0; while (num != 0){ int last = num % 10; result = result * 10 + last; num /= 10; } //if (sign) result *= -1; cout << result << endl; } -
0
哈哈 Ac了
#include<stdio.h>
#include<string.h>
int main()
{
char sh[11];
scanf("%s",sh);
int len = strlen(sh);
int i;
if(sh[0] == '-')
{
printf("-");
}
if(sh[0] == '0')
{
printf("0");
return 0;
}
int sign = 0;
for(i=len-1; i >= 0; i--)
{
if(sh[i] != '0')
{
sign = 1;
}
// printf("i = %d sign = %d\n",i,sign);
if(sh[i] != '-'&&sign == 1)printf("%c",sh[i]);}
return 0;
} -
0
评测结果
编译成功Free Pascal Compiler version 3.0.0 [2015/11/16] for i386
Copyright (c) 1993-2015 by Florian Klaempfl and others
Target OS: Win32 for i386
Compiling foo.pas
Linking foo.exe
29 lines compiled, 0.0 sec, 26512 bytes code, 1268 bytes data
测试数据 #0: Accepted, time = 0 ms, mem = 808 KiB, score = 10
测试数据 #1: Accepted, time = 0 ms, mem = 812 KiB, score = 10
测试数据 #2: Accepted, time = 0 ms, mem = 808 KiB, score = 10
测试数据 #3: Accepted, time = 0 ms, mem = 812 KiB, score = 10
测试数据 #4: Accepted, time = 0 ms, mem = 808 KiB, score = 10
测试数据 #5: Accepted, time = 0 ms, mem = 808 KiB, score = 10
测试数据 #6: Accepted, time = 0 ms, mem = 808 KiB, score = 10
测试数据 #7: Accepted, time = 0 ms, mem = 808 KiB, score = 10
测试数据 #8: Accepted, time = 0 ms, mem = 808 KiB, score = 10
测试数据 #9: Accepted, time = 0 ms, mem = 808 KiB, score = 10
Accepted, time = 0 ms, mem = 812 KiB, score = 100
代码
var t:char;
s:string;
o,i,f:longint;
fs:boolean;
begin
read(s);
if s[1]='-' then
begin
fs:=true;
delete(s,1,1);
end;
o:=length(s)+1;
f:=length(s) div 2;
for i:=1 to f do
begin
t:=s[i];
dec(o);
s[i]:=s[o];
s[o]:=t;
end;
for i:=1 to length(s)+1 do
begin
if s[1]<>'0' then break;
if s[1]='0' then delete(s,1,1);
end;
if fs then write('-');
write(s);end.
-
0
#include<bits/stdc++.h>
using namespace std;
char a[1000];
int main()
{
int i,j,k,n,m;
cin>>a;
n=strlen(a);
if(a[0]=='-')
{
cout<<a[0];
for(i=n-1;i>0;i--)
{
if(a[i]!='0')
{
k=i;
break;
}
}
for(i=k;i>0;i--)
cout<<a[i];
}
else
{
for(i=n-1;i>=0;i--)
{
if(a[i]!='0')
{
k=i;
break;
}
}
for(i=k;i>=0;i--)
cout<<a[i];
}
return 0;
}
2351599120
LV 9
@ 2017-07-22 17:21:08
