Submission #18154

#	Time	Username	Problem	Language	Result	Execution time	Memory
18154		comet	Schools (IZhO13_school)	C++98	5 / 100	85 ms	41016 KiB

school

#include <cstdio>
#include <cstring>

using namespace std;
typedef long long ll;

int N,M,S;
ll d[501][101][101];
ll a[501],b[501];

ll max(ll x,ll y){
	return x>y?x:y;
}

ll max(ll x,ll y,ll z){
	return max(x,max(y,z));
}

ll f(int p,int x,int y){
	if(p==N){
		if(x<M||y<S)return -1e18;
		return 0;
	}
	ll& ret=d[p][x][y];
	if(~ret)return ret;
	if(x==M&&y==S)return ret=f(p+1,x,y);
	if(x==M)return ret=max(f(p+1,x,y),f(p+1,x,y+1)+b[y]);
	if(y==S)return ret=max(f(p+1,x,y),f(p+1,x+1,y)+a[x]);
	return ret=max(f(p+1,x,y),f(p+1,x+1,y)+a[x],f(p+1,x,y+1)+b[y]);
}

int main(){
	scanf("%d%d%d",&N,&M,&S);

	for(int i=0;i<N;i++){
		scanf("%lld%lld\n",&a[i],&b[i]);
	}

	memset(d,-1,sizeof(d));

	printf("%lld\n",f(0,0,0));

	return 0;
}

• Subtask 1: 5 / 100