Submission #425539

#	Time	Username	Problem	Language	Result	Execution time	Memory
425539		chirathnirodha	Jelly Flavours (IOI20_jelly)	C++17	0 / 100	137 ms	152052 KiB

jelly

//Coded by Chirath Nirodha
#include<bits/stdc++.h>
using namespace std;
#include "jelly.h"
#define MP make_pair
#define PB push_back
#define F first
#define S second
typedef long long ll;
 
bool sub4(vector<int> v){
	for(int i=1;i<v.size();i++)if(v[i]!=v[i-1])return false;
	return true;
}
bool sub5(vector<int> v,vector<int> w){
	for(int i=0;i<v.size();i++)if(v[i]!=w[i])return false;
	return true;
}
int find_maximum_unique(int x, int y, vector<int> a, vector<int> b) {
	int n = a.size();
	if(y==0){
		vector<vector<int>> dp1(n+1,vector<int>(x+1,0));
		for(int i=0;i<=x;i++)dp1[0][i]=0;
		for(int i=1;i<=n;i++){
			for(int j=0;j<=x;j++){
				dp1[i][j]=dp1[i-1][j];
				if(j-a[i-1]>=0)dp1[i][j]=max(dp1[i][j],dp1[i-1][j-a[i-1]]+1);
			}
		}
		return -10;
	}
	else if(sub4(b)){
		int dp2[n+1][x+1];
		for(int i=0;i<=x;i++)dp2[0][i]=0;
		for(int i=1;i<=n;i++){
			for(int j=0;j<=x;j++){
				dp2[i][j]=dp2[i-1][j];
				if(j-a[i-1]>=0)dp2[i][j]=max(dp2[i][j],dp2[i-1][j-a[i-1]]+1);
			}
		}
		int ans=dp2[n][x];
		ans=min(n,ans+y/b[0]);
		return ans;
	}
	else if(sub5(a,b)){
		x+=y;
		int dp3[n+1][x+1];
		for(int i=0;i<=x;i++)dp3[0][i]=0;
		for(int i=1;i<=n;i++){
			for(int j=0;j<=x;j++){
				dp3[i][j]=dp3[i-1][j];
				if(j-a[i-1]>=0)dp3[i][j]=max(dp3[i][j],dp3[i-1][j-a[i-1]]+1);
			}
		}
		return dp3[n][x];
	}
	else{
		int dp[n+1][x+1][y+1];
		for(int i=0;i<=x;i++)for(int j=0;j<=y;j++)dp[0][x][y]=0;
		for(int i=1;i<=n;i++){
			for(int j=0;j<=x;j++){
				for(int k=0;k<=y;k++){
					dp[i][j][k]=dp[i-1][j][k];
					if(j-a[i-1]>=0)dp[i][j][k]=max(dp[i][j][k],dp[i-1][j-a[i-1]][k]+1);
					if(k-b[i-1]>=0)dp[i][j][k]=max(dp[i][j][k],dp[i-1][j][k-b[i-1]]+1);
				}
			}
		}
		return dp[n][x][y];
	}
}

Compilation message (stderr)

jelly.cpp: In function 'bool sub4(std::vector<int>)':
jelly.cpp:12:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   12 |  for(int i=1;i<v.size();i++)if(v[i]!=v[i-1])return false;
      |              ~^~~~~~~~~
jelly.cpp: In function 'bool sub5(std::vector<int>, std::vector<int>)':
jelly.cpp:16:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   16 |  for(int i=0;i<v.size();i++)if(v[i]!=w[i])return false;
      |              ~^~~~~~~~~

• Subtask 1: 0 / 11
• Subtask 2: 0 / 24
• Subtask 3: 0 / 9
• Subtask 4: 0 / 10
• Subtask 5: 0 / 14
• Subtask 6: 0 / 32