trick:

1、前导0

如:000001,000.000001

2、出现0时也要按照科学计数法输出

e.g. 4 00000.00000 0001

NO 0.0000*10^0 0.1*10^1

3、小于0.1的情况 0.00000001

#include<iostream>
#include<cstring>
#include<cstdio>
using namespace std;
char s1[105],s2[105];
char a1[105],a2[105];
int n;
int main()
{
int n,i,l1,l2,p1=0,p2=0,flag=0,t,cnt,ls1,ls2;
while(~scanf("%d %s %s",&n,s1,s2))
{
p1=ls1=0;
l1=strlen(s1);
for (;ls1<l1;++ls1)
{
if(s1[ls1]=='.')
p1=ls1;//点位置
else if (s1[ls1]!='0')
break;
}
if(ls1==l1){//为0
// sprintf(a1,"0");
a1[0]='0',a1[1]='.',t=2;
for (i=0;i<n;++i)
a1[t++]='0';
sprintf(a1+t,"*10^0");
}
else{
a1[0]='0',a1[1]='.',t=2;
if (p1==0)//此为大于1的数
{
for (p1=ls1;p1<l1&&s1[p1]!='.';++p1);
for(i=ls1,cnt=0;i<l1&&cnt<n;++i)
if(s1[i]!='.'){
a1[t++]=s1[i];
cnt++;
}
while(cnt<n){
a1[t++]='0';
cnt++;
}
sprintf(a1+t,"*10^%d",p1-ls1);
}
else{//此为小于1的数
for(i=ls1,cnt=0;i<l1&&cnt<n;++i)
if(s1[i]!='.'){
a1[t++]=s1[i];
cnt++;
}
while(cnt<n){
a1[t++]='0';
cnt++;
}
sprintf(a1+t,"*10^%d",-(ls1-p1-1));
}
} p2=ls2=0;
l2=strlen(s2);
for (;ls2<l2;++ls2)
{
if(s2[ls2]=='.')
p2=ls2;//点位置
else if (s2[ls2]!='0')
break;
}
if(ls2==l2){//
a2[0]='0',a2[1]='.',t=2;
for (i=0;i<n;++i)
a2[t++]='0';
sprintf(a2+t,"*10^0");
}
else{
a2[0]='0',a2[1]='.',t=2;
if (p2==0)//此为大于1的数
{
for (p2=ls2;p2<l2&&s2[p2]!='.';++p2);
for(i=ls2,cnt=0;i<l2&&cnt<n;++i)
if(s2[i]!='.'){
a2[t++]=s2[i];
cnt++;
}
while(cnt<n){
a2[t++]='0';
cnt++;
}
sprintf(a2+t,"*10^%d",p2-ls2);
}
else{//此为小于1的数
for(i=ls2,cnt=0;i<l2&&cnt<n;++i)
if(s2[i]!='.'){
a2[t++]=s2[i];
cnt++;
}
while(cnt<n){
a2[t++]='0';
cnt++;
}
sprintf(a2+t,"*10^%d",-(ls2-p2-1));
}
}
if (strcmp(a1,a2)==0)
printf("YES %s\n",a1);
else
printf("NO %s %s\n",a1,a2);
}
return 0;
}
//4 000.001001 10.01
//3 00000.00001 1.00001
05-11 19:40