HDU Big Event in HDU
5379 ワード
Big Event in HDU
Time Limit: 1000/5000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)
Total Submission(s): 1 Accepted Submission(s): 1
Problem Description
Nowadays, we all know that Computer College is the biggest department in HDU. But, maybe you don't know that Computer College had ever been split into Computer College and Software College in 2002.
The splitting is absolutely a big event in HDU! At the same time, it is a trouble thing too. All facilities must go halves. First, all facilities are assessed, and two facilities are thought to be same if they have the same value. It is assumed that there is N (0
Input
Input contains multiple test cases. Each test case starts with a number N (0 < N <= 50 -- the total number of different facilities). The next N lines contain an integer V (0A test case starting with a negative integer terminates input and this test case is not to be processed.
Output
For each case, print one line containing two integers A and B which denote the value of Computer College and Software College will get respectively. A and B should be as equal as possible. At the same time, you should guarantee that A is not less than B.
SampleInput
SampleOutput
Author
lcy
Time Limit: 1000/5000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)
Total Submission(s): 1 Accepted Submission(s): 1
Problem Description
Nowadays, we all know that Computer College is the biggest department in HDU. But, maybe you don't know that Computer College had ever been split into Computer College and Software College in 2002.
The splitting is absolutely a big event in HDU! At the same time, it is a trouble thing too. All facilities must go halves. First, all facilities are assessed, and two facilities are thought to be same if they have the same value. It is assumed that there is N (0
Input
Input contains multiple test cases. Each test case starts with a number N (0 < N <= 50 -- the total number of different facilities). The next N lines contain an integer V (0
Output
For each case, print one line containing two integers A and B which denote the value of Computer College and Software College will get respectively. A and B should be as equal as possible. At the same time, you should guarantee that A is not less than B.
SampleInput
2
10 1
20 1
3
10 1
20 2
30 1
-1SampleOutput
20 10
40 40Author
lcy
#include<stdio.h>
#include<string.h>
int n;
int dp[250010],num[60],val[60];
int main(){
//freopen("input.txt","r",stdin);
while(scanf("%d",&n)){
if(n<=0)
break;
int i,j,k;
int sum=0;
for(i=0;i<n;i++){
scanf("%d%d",&val[i],&num[i]);
sum+=val[i]*num[i];
}
memset(dp,0,sizeof(dp));
dp[0]=1;
for(i=0;i<n;i++)
for(k=0;k<num[i];k++)
for(j=sum/2;j>=val[i];j--)
if(dp[j-val[i]])
dp[j]=1;
for(i=sum/2;i>=0;i--)
if(dp[i]){
printf("%d %d
",sum-i,i);
break;
}
}
return 0;
}