oj.uz

Submission #506075

# Submission time Handle Problem Language Result Execution time Memory
506075 2022-01-11T13:38:37 Z amukkalir Bali Sculptures (APIO15_sculpture) C++17
100 / 100
 101 ms 16076 KB 
#include <bits/stdc++.h> 
using namespace std; 

typedef long long ll; 
typedef unsigned long long ull; 

#define pii pair<ll,ll> 
#define se second 
#define fi first
#define pb push_back 
#define wek puts("wekwek")
#define wik puts("-------")

const int nax = 2e3; 
const ll INF = (1ll<<42)-1; 
int n, a, b; 
int dp[nax+5][nax+5]; 
int memo[nax+5]; 
ll p[nax+5];

ll sum (int l, int r) {
    return p[r] - p[l-1]; 
}

int f(int grup, int idx, ll x) {
    if(grup > b) return 0; 
    if(idx == n+1) {
        return (a <= grup && grup <= b); 
    }

    int &ret = dp[grup][idx]; 
    if(~ret) return ret; 

	ret = 0; 
    for(int j=idx; j<=n; j++) {
        if((x | sum(idx,j)) == x) {
			ret |= f(grup+1, j+1, x); 
		}
    }
	//cout << grup << " " << idx << " " << ret << endl; 
    return ret; 
}

int rec(int idx, ll x) { 
	if(idx == n+1) return 0; 
	int &ret = memo[idx]; 
	if(~ret) return ret; 
	ret = n+1; 
	for(int j=idx; j<=n; j++) {
		if((x | sum(idx,j)) == x) {
			ret = min(ret, 1 + rec(j+1, x)); 
		}
	}

	return ret; 
}

void solve() {
	ll lo = 0, hi = INF; 
    ll ans = hi; 
    while(lo <= hi) {
        ll mid = (lo+hi)/2; 
        memset(memo, -1, sizeof memo); 
		//cout << bitset<64> (mid) << endl; 
        if(rec(1, mid) <= b) {
            ans = mid; 
            hi = mid-1; 
        } else {
            lo = mid+1; 
        }
    }
	printf("%lld", ans); 
	exit(0); 
}

signed main () {	
    scanf("%d %d %d", &n, &a, &b);
    for(int i=1; i<=n; i++)  {
        scanf("%lld", &p[i]); 
        p[i] += p[i-1]; 
		//cout << i << " " << p[i] << endl; 
    }

	if(a==1) solve(); 

    ll lo = 0, hi = INF; 
    ll ans = hi; 
    while(lo <= hi) {
        ll mid = (lo+hi)/2; 
        memset(dp, -1, sizeof dp); 
		//cout << bitset<64> (mid) << endl; 
        if(f(0, 1, mid)) {
            ans = mid; 
            hi = mid-1; 
        } else {
            lo = mid+1; 
        }
    }

    printf("%lld", ans); 
}

/*

*/

Compilation message

sculpture.cpp: In function 'int main()':
sculpture.cpp:77:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   77 |     scanf("%d %d %d", &n, &a, &b);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
sculpture.cpp:79:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   79 |         scanf("%lld", &p[i]);
      |         ~~~~~^~~~~~~~~~~~~~~

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 75 ms 16008 KB Output is correct
15 Correct 74 ms 15948 KB Output is correct
16 Correct 78 ms 16008 KB Output is correct
17 Correct 74 ms 16012 KB Output is correct
18 Correct 71 ms 16004 KB Output is correct
19 Correct 76 ms 16008 KB Output is correct
20 Correct 79 ms 15948 KB Output is correct
21 Correct 75 ms 15948 KB Output is correct
22 Correct 72 ms 16004 KB Output is correct
23 Correct 73 ms 16004 KB Output is correct
24 Correct 72 ms 16008 KB Output is correct
25 Correct 79 ms 15948 KB Output is correct
26 Correct 75 ms 15948 KB Output is correct
27 Correct 0 ms 204 KB Output is correct
28 Correct 0 ms 204 KB Output is correct
29 Correct 0 ms 204 KB Output is correct
30 Correct 0 ms 204 KB Output is correct
31 Correct 0 ms 204 KB Output is correct
32 Correct 0 ms 204 KB Output is correct
33 Correct 0 ms 204 KB Output is correct
34 Correct 0 ms 204 KB Output is correct
35 Correct 0 ms 204 KB Output is correct
36 Correct 0 ms 204 KB Output is correct

Subtask #2
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 76 ms 16008 KB Output is correct
15 Correct 74 ms 16004 KB Output is correct
16 Correct 75 ms 16076 KB Output is correct
17 Correct 75 ms 15984 KB Output is correct
18 Correct 87 ms 16008 KB Output is correct
19 Correct 76 ms 16008 KB Output is correct
20 Correct 73 ms 16004 KB Output is correct
21 Correct 74 ms 16012 KB Output is correct
22 Correct 73 ms 16020 KB Output is correct
23 Correct 74 ms 15948 KB Output is correct
24 Correct 75 ms 16008 KB Output is correct
25 Correct 74 ms 15948 KB Output is correct
26 Correct 73 ms 15948 KB Output is correct
27 Correct 0 ms 204 KB Output is correct
28 Correct 0 ms 204 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 0 ms 204 KB Output is correct
31 Correct 0 ms 204 KB Output is correct
32 Correct 1 ms 204 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 1 ms 204 KB Output is correct
36 Correct 1 ms 204 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 312 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 2 ms 204 KB Output is correct
30 Correct 1 ms 204 KB Output is correct
31 Correct 1 ms 204 KB Output is correct
32 Correct 1 ms 204 KB Output is correct

Subtask #4
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 292 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 71 ms 15948 KB Output is correct
15 Correct 72 ms 16004 KB Output is correct
16 Correct 79 ms 16008 KB Output is correct
17 Correct 72 ms 15948 KB Output is correct
18 Correct 75 ms 15948 KB Output is correct
19 Correct 86 ms 15952 KB Output is correct
20 Correct 85 ms 15948 KB Output is correct
21 Correct 74 ms 15956 KB Output is correct
22 Correct 71 ms 15948 KB Output is correct
23 Correct 74 ms 16008 KB Output is correct
24 Correct 72 ms 16004 KB Output is correct
25 Correct 73 ms 16012 KB Output is correct
26 Correct 78 ms 16004 KB Output is correct
27 Correct 0 ms 204 KB Output is correct
28 Correct 0 ms 204 KB Output is correct
29 Correct 0 ms 204 KB Output is correct
30 Correct 0 ms 204 KB Output is correct
31 Correct 0 ms 204 KB Output is correct
32 Correct 0 ms 204 KB Output is correct
33 Correct 0 ms 204 KB Output is correct
34 Correct 0 ms 204 KB Output is correct
35 Correct 0 ms 204 KB Output is correct
36 Correct 0 ms 204 KB Output is correct
37 Correct 1 ms 204 KB Output is correct
38 Correct 1 ms 204 KB Output is correct
39 Correct 1 ms 204 KB Output is correct
40 Correct 1 ms 204 KB Output is correct
41 Correct 1 ms 204 KB Output is correct
42 Correct 1 ms 204 KB Output is correct
43 Correct 1 ms 204 KB Output is correct
44 Correct 1 ms 204 KB Output is correct
45 Correct 1 ms 204 KB Output is correct
46 Correct 1 ms 204 KB Output is correct
47 Correct 1 ms 204 KB Output is correct
48 Correct 1 ms 204 KB Output is correct
49 Correct 1 ms 208 KB Output is correct
50 Correct 1 ms 204 KB Output is correct
51 Correct 1 ms 204 KB Output is correct
52 Correct 2 ms 212 KB Output is correct
53 Correct 1 ms 212 KB Output is correct
54 Correct 1 ms 212 KB Output is correct
55 Correct 1 ms 216 KB Output is correct
56 Correct 0 ms 204 KB Output is correct
57 Correct 1 ms 204 KB Output is correct
58 Correct 1 ms 204 KB Output is correct
59 Correct 1 ms 204 KB Output is correct
60 Correct 1 ms 204 KB Output is correct
61 Correct 1 ms 204 KB Output is correct
62 Correct 1 ms 204 KB Output is correct
63 Correct 1 ms 204 KB Output is correct
64 Correct 98 ms 16016 KB Output is correct
65 Correct 78 ms 16008 KB Output is correct
66 Correct 77 ms 16072 KB Output is correct
67 Correct 77 ms 16008 KB Output is correct
68 Correct 78 ms 16004 KB Output is correct
69 Correct 82 ms 16016 KB Output is correct
70 Correct 79 ms 16008 KB Output is correct
71 Correct 72 ms 15948 KB Output is correct
72 Correct 82 ms 16008 KB Output is correct
73 Correct 84 ms 15948 KB Output is correct
74 Correct 81 ms 15948 KB Output is correct

Subtask #5
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 0 ms 204 KB Output is correct
21 Correct 0 ms 204 KB Output is correct
22 Correct 0 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 0 ms 204 KB Output is correct
25 Correct 0 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 1 ms 256 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 1 ms 204 KB Output is correct
31 Correct 1 ms 204 KB Output is correct
32 Correct 1 ms 204 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 1 ms 204 KB Output is correct
36 Correct 1 ms 204 KB Output is correct
37 Correct 1 ms 204 KB Output is correct
38 Correct 2 ms 204 KB Output is correct
39 Correct 1 ms 204 KB Output is correct
40 Correct 1 ms 204 KB Output is correct
41 Correct 1 ms 204 KB Output is correct
42 Correct 1 ms 204 KB Output is correct
43 Correct 1 ms 204 KB Output is correct
44 Correct 1 ms 204 KB Output is correct
45 Correct 1 ms 204 KB Output is correct
46 Correct 1 ms 204 KB Output is correct
47 Correct 1 ms 204 KB Output is correct
48 Correct 1 ms 304 KB Output is correct
49 Correct 1 ms 204 KB Output is correct
50 Correct 1 ms 204 KB Output is correct
51 Correct 1 ms 204 KB Output is correct
52 Correct 13 ms 352 KB Output is correct
53 Correct 9 ms 368 KB Output is correct
54 Correct 29 ms 364 KB Output is correct
55 Correct 23 ms 332 KB Output is correct
56 Correct 54 ms 332 KB Output is correct
57 Correct 49 ms 440 KB Output is correct
58 Correct 81 ms 416 KB Output is correct
59 Correct 69 ms 324 KB Output is correct
60 Correct 84 ms 460 KB Output is correct
61 Correct 1 ms 204 KB Output is correct
62 Correct 13 ms 364 KB Output is correct
63 Correct 34 ms 304 KB Output is correct
64 Correct 25 ms 332 KB Output is correct
65 Correct 26 ms 400 KB Output is correct
66 Correct 37 ms 440 KB Output is correct
67 Correct 60 ms 440 KB Output is correct
68 Correct 101 ms 440 KB Output is correct
69 Correct 45 ms 332 KB Output is correct