Submission #49554

#	Time	Username	Problem	Language	Result	Execution time	Memory
49554		hamzqq9	Bali Sculptures (APIO15_sculpture)	C++14	100 / 100	217 ms	11604 KiB

sculpture

#include<bits/stdc++.h>
#define lf double
#define ll long long
#define cc pair<char,char>
#define ull unsigned ll
#define ii pair<int,int>
#define li pair<ll,int>
#define iii pair<ii,int>
#define iiii pair<ii,ii>
#define iiii2 pair<int,iii>
#define lii pair<ll,ii>
#define lolo pair<ll,ll>
#define heap priority_queue
#define mp make_pair
#define st first
#define nd second
#define pb push_back
#define pf push_front
#define ppb pop_back
#define ppf pop_front
#define all(x) x.begin(),x.end()
#define len(x) strlen(x)
#define sz(x) (int) x.size()
#define orta ((bas+son)/2)
#define min3(x,y,z) min(min(x,y),z)
#define max3(x,y,z) max(max(x,y),z)
#define umin(x,y) x=min(x,y)
#define umax(x,y) x=max(x,y)
#define dbgs(x) cerr<<(#x)<<" --> "<<(x)<<" "
#define dbg(x) cerr<<(#x)<<" --> "<<(x)<<endl;getchar()
#define MOD 1000000007
#define inf 1000000005
#define M 10000002
#define N 2005
#define LOG 40
#define magic 100
#define KOK 250
#define EPS 0.0025
#define pw(x) ((1ll)<<(x))
#define PI 3.1415926535
using namespace std;

int n,a,b;
int ar[N],mn[N];
bool dp[105][105];
vector<int> v[N];

bool ok(ll val) {

	for(int i=1;i<=n;i++) {

		v[i-1].clear();

		mn[i]=inf;

		ll sum=0;

		for(int j=i-1;j>=0;j--) {

			sum+=ar[j+1];

			if((sum|val)==val) {
			
				v[j].pb(i);
				
				umin(mn[i],mn[j]+1);

			}

		}

	}

	if(a==1) {

		return (mn[n]<=b);

	}

	memset(dp,0,sizeof(dp));

	dp[0][0]=1;

	for(int l=1;l<=n;l++) {

		for(int i=0;i<=n;i++) {

			if(dp[l-1][i]) {

				for(int ind:v[i]) {

					dp[l][ind]=1;

				}

			}

		}

	}

	for(int i=a;i<=b;i++) if(dp[i][n]) return true;

	return false;

}

int main() {
 
 	#if 0
	freopen("input.txt","r",stdin);
 	#endif

	scanf("%d %d %d",&n,&a,&b);

	for(int i=1;i<=n;i++) {

		scanf("%d",&ar[i]);

	}

	ll full=pw(LOG+1)-1;

	for(int i=LOG;i>=0;i--) {

		full-=pw(i);

		if(!ok(full)) full+=pw(i);

	}

	printf("%lld",full);

}

Compilation message (stderr)

sculpture.cpp: In function 'int main()':
sculpture.cpp:114:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d %d",&n,&a,&b);
  ~~~~~^~~~~~~~~~~~~~~~~~~~~
sculpture.cpp:118:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&ar[i]);
   ~~~~~^~~~~~~~~~~~~

• Subtask 1: 9 / 9
• Subtask 2: 16 / 16
• Subtask 3: 21 / 21
• Subtask 4: 25 / 25
• Subtask 5: 29 / 29