Submission #43655

#	Time	Username	Problem	Language	Result	Execution time	Memory
43655		gnoor	Bali Sculptures (APIO15_sculpture)	C++14	21 / 100	2 ms	612 KiB

sculpture

#include <cstdio>
#include <cstring>
#include <algorithm>
#include <vector>

using namespace std;

int tbl[5000];
int dis[5000];

int n,a,b;

int num(long long mask) {
	memset(dis,63,sizeof(dis));
	dis[0]=0;
	for (int i=0;i<=n;i++) {
		for (int j=i+1;j<=n;j++) {
			if (((tbl[j]-tbl[i])&(~mask))==0) {
				dis[j]=min(dis[j],dis[i]+1);
			}
		}
	}
	return dis[n];
}

void printBin(long long x) {
	for (int i=50;i>=0;i--) {
		printf("%d",(x&(1ll<<i))?1:0);
	}
	printf("\n");
}

int main () {
	scanf("%d%d%d",&n,&a,&b);
	for (int i=1;i<=n;i++) {
		scanf("%d",&tbl[i]);
		tbl[i]+=tbl[i-1];
	}
	long long mask=(1ll<<50)-1;
	//printBin(mask);
	for (int i=49;i>=0;i--) {
		mask^=(1ll<<i);
		//printBin(mask);
		int tmp=num(mask);
		if (tmp>b||tmp<a) {
			mask^=(1ll<<i);				
		}
	}
	printf("%lld\n",mask);
	return 0;
}

Compilation message (stderr)

sculpture.cpp: In function 'int main()':
sculpture.cpp:34:26: 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:36:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&tbl[i]);
                      ^

• Subtask 1: 0 / 9
• Subtask 2: 0 / 16
• Subtask 3: 21 / 21
• Subtask 4: 0 / 25
• Subtask 5: 0 / 29