777B - Game of Credit Cards - CodeForces Solution


data structures dp greedy sortings *1300

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Python Code:

def solve(b1,b2):
    if len(b1)!=len(b2):
        return -1
    for i in b1:
        if not i in "0123456789":
            return -1
    for i in b2:
        if not i in "0123456789":
            return -1
    v1=[int(i) for i in b1]
    v2=[int(i) for i in b2]
    v1.sort()
        v2.sort()
    a,b=0,0
    tmp=0
    ln=len(b1)
    ans=""
    while b<ln:
        if v1[a]>v2[b]:
            tmp+=1
        else:
            a+=1
        b+=1
    ans+=str(tmp)+"\n"
    a,b=0,0
    tmp=0
    ln=len(v1)
    while a<ln:
        while b<ln and v1[a]>=v2[b]:
            b+=1
        if b<ln:
            tmp+=1
            b+=1
        a+=1
    ans+=str(tmp)
    return ans
    
def doc(lst):
    fn=[]
    for i in lst:
        b1,b2=i[0],i[1]
        fn.append(solve(b1,b2))
    return fn

n=int(input())
b1=input()
b2=input()
print(solve(b1,b2))

C++ Code:

#include<cstdio>
#include<cstring>
#include<iostream>
#include<algorithm>
using namespace std;
bool cmp(int a,int b)
{
     return a>b;
}
int main()
{
     int n;
     char a[1005];
     char b[1005];
     while(scanf("%d",&n)!=EOF)
     {
         scanf("%s%s",a,b);
         sort(a,a+n);
         sort(b,b+n);
         int x=0;
         int y=0;
         for(int i=0,j=0;j<n;j++)
         {
             if(b[j]>=a[i]) i++;
             else x++;
         }
         for(int i=n-1,j=n-1;i>=0;i--)
         {
             if(b[j]>a[i])
             {
                 j--;
                 y++;
             }
         }
         printf("%d\n%d\n",x,y); 
     }
return 0;
 }
	     	  	 		 			  	 	 	  	  		


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