oj.uz

Submission #485968

# Submission time Handle Problem Language Result Execution time Memory
485968 2021-11-09T21:56:49 Z MilosMilutinovic K blocks (IZhO14_blocks) C++14
100 / 100
 239 ms 84472 KB 
#include <bits/stdc++.h>
using namespace std;
#define rep(i,a,n) for (int i=a;i<n;i++)
#define per(i,a,n) for (int i=n-1;i>=a;i--)
#define pb push_back
#define mp make_pair
#define all(x) (x).begin(),(x).end()
#define fi first
#define se second
#define SZ(x) ((int)(x).size())
typedef vector<int> VI;
typedef long long ll;
typedef pair<int,int> PII;
typedef double db;
mt19937 mrand(random_device{}()); 
const ll mod=1000000007;
const ll mod2=998244353;
int rnd(int x) { return mrand() % x;}
ll powmod(ll a,ll b) {ll res=1;a%=mod; assert(b>=0); for(;b;b>>=1){if(b&1)res=res*a%mod;a=a*a%mod;}return res;}
ll gcd(ll a,ll b) { return b?gcd(b,a%b):a;}
// head

const int N=1010000;
int n,k,a[N];
ll dp[N][105];

int main() {
	scanf("%d%d",&n,&k);
	rep(i,1,n+1) scanf("%d",a+i);
	rep(i,0,105) rep(j,0,n+1) dp[i][j]=(1LL<<40);
	int mx=0;
	rep(i,1,n+1) {
		mx=max(mx,a[i]);
		dp[i][1]=mx;
	}
	rep(j,2,k+1) {
		stack<pair<ll,ll>> stk;
		rep(i,1,n+1) {
			ll ft=dp[i-1][j-1];
			while (SZ(stk)&&stk.top().fi<a[i]) ft=min(ft,stk.top().se),stk.pop();
			if (stk.empty()||a[i]+ft<stk.top().fi+stk.top().se) stk.push(mp(a[i],ft));
			if (i>=j) dp[i][j]=stk.top().fi+stk.top().se;
		}
	}
	printf("%lld",dp[n][k]);
}

Compilation message

blocks.cpp: In function 'int main()':
blocks.cpp:28:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   28 |  scanf("%d%d",&n,&k);
      |  ~~~~~^~~~~~~~~~~~~~
blocks.cpp:29:20: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   29 |  rep(i,1,n+1) scanf("%d",a+i);
      |               ~~~~~^~~~~~~~~~

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 0 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 0 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 0 ms 332 KB Output is correct
17 Correct 0 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 312 KB Output is correct
7 Correct 0 ms 300 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 0 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 0 ms 312 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 0 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 0 ms 332 KB Output is correct
19 Correct 0 ms 332 KB Output is correct
20 Correct 0 ms 332 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 0 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 0 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 0 ms 332 KB Output is correct
17 Correct 0 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 0 ms 332 KB Output is correct
20 Correct 0 ms 332 KB Output is correct
21 Correct 0 ms 332 KB Output is correct
22 Correct 0 ms 332 KB Output is correct
23 Correct 0 ms 344 KB Output is correct
24 Correct 0 ms 312 KB Output is correct
25 Correct 0 ms 300 KB Output is correct
26 Correct 0 ms 332 KB Output is correct
27 Correct 0 ms 332 KB Output is correct
28 Correct 0 ms 332 KB Output is correct
29 Correct 0 ms 332 KB Output is correct
30 Correct 0 ms 312 KB Output is correct
31 Correct 0 ms 332 KB Output is correct
32 Correct 0 ms 332 KB Output is correct
33 Correct 0 ms 332 KB Output is correct
34 Correct 0 ms 332 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 0 ms 332 KB Output is correct
37 Correct 0 ms 332 KB Output is correct
38 Correct 0 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 0 ms 332 KB Output is correct
41 Correct 0 ms 332 KB Output is correct
42 Correct 0 ms 332 KB Output is correct
43 Correct 0 ms 332 KB Output is correct
44 Correct 1 ms 332 KB Output is correct
45 Correct 0 ms 332 KB Output is correct
46 Correct 0 ms 332 KB Output is correct
47 Correct 0 ms 332 KB Output is correct
48 Correct 0 ms 332 KB Output is correct
49 Correct 0 ms 332 KB Output is correct
50 Correct 0 ms 332 KB Output is correct
51 Correct 0 ms 332 KB Output is correct
52 Correct 1 ms 332 KB Output is correct
53 Correct 1 ms 332 KB Output is correct
54 Correct 1 ms 332 KB Output is correct
55 Correct 0 ms 332 KB Output is correct
56 Correct 1 ms 332 KB Output is correct
57 Correct 1 ms 332 KB Output is correct

Subtask #4
47.0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 0 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 0 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 0 ms 332 KB Output is correct
17 Correct 0 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 0 ms 332 KB Output is correct
20 Correct 0 ms 332 KB Output is correct
21 Correct 0 ms 332 KB Output is correct
22 Correct 0 ms 332 KB Output is correct
23 Correct 0 ms 344 KB Output is correct
24 Correct 0 ms 312 KB Output is correct
25 Correct 0 ms 300 KB Output is correct
26 Correct 0 ms 332 KB Output is correct
27 Correct 0 ms 332 KB Output is correct
28 Correct 0 ms 332 KB Output is correct
29 Correct 0 ms 332 KB Output is correct
30 Correct 0 ms 312 KB Output is correct
31 Correct 0 ms 332 KB Output is correct
32 Correct 0 ms 332 KB Output is correct
33 Correct 0 ms 332 KB Output is correct
34 Correct 0 ms 332 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 0 ms 332 KB Output is correct
37 Correct 0 ms 332 KB Output is correct
38 Correct 0 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 0 ms 332 KB Output is correct
41 Correct 0 ms 332 KB Output is correct
42 Correct 0 ms 332 KB Output is correct
43 Correct 0 ms 332 KB Output is correct
44 Correct 1 ms 332 KB Output is correct
45 Correct 0 ms 332 KB Output is correct
46 Correct 0 ms 332 KB Output is correct
47 Correct 0 ms 332 KB Output is correct
48 Correct 0 ms 332 KB Output is correct
49 Correct 0 ms 332 KB Output is correct
50 Correct 0 ms 332 KB Output is correct
51 Correct 0 ms 332 KB Output is correct
52 Correct 1 ms 332 KB Output is correct
53 Correct 1 ms 332 KB Output is correct
54 Correct 1 ms 332 KB Output is correct
55 Correct 0 ms 332 KB Output is correct
56 Correct 1 ms 332 KB Output is correct
57 Correct 1 ms 332 KB Output is correct
58 Correct 7 ms 8652 KB Output is correct
59 Correct 18 ms 37320 KB Output is correct
60 Correct 20 ms 37284 KB Output is correct
61 Correct 50 ms 37300 KB Output is correct
62 Correct 182 ms 83460 KB Output is correct
63 Correct 42 ms 83500 KB Output is correct
64 Correct 100 ms 83560 KB Output is correct
65 Correct 0 ms 332 KB Output is correct
66 Correct 0 ms 332 KB Output is correct
67 Correct 0 ms 332 KB Output is correct
68 Correct 1 ms 332 KB Output is correct
69 Correct 1 ms 1100 KB Output is correct
70 Correct 1 ms 1100 KB Output is correct
71 Correct 15 ms 8640 KB Output is correct
72 Correct 4 ms 8524 KB Output is correct
73 Correct 7 ms 8524 KB Output is correct
74 Correct 17 ms 37196 KB Output is correct
75 Correct 21 ms 37248 KB Output is correct
76 Correct 51 ms 37304 KB Output is correct
77 Correct 199 ms 83484 KB Output is correct
78 Correct 41 ms 83496 KB Output is correct
79 Correct 110 ms 83544 KB Output is correct
80 Correct 38 ms 83548 KB Output is correct
81 Correct 48 ms 83472 KB Output is correct
82 Correct 196 ms 83552 KB Output is correct
83 Correct 1 ms 1100 KB Output is correct
84 Correct 1 ms 1100 KB Output is correct
85 Correct 17 ms 8724 KB Output is correct
86 Correct 4 ms 8652 KB Output is correct
87 Correct 8 ms 8652 KB Output is correct
88 Correct 17 ms 37244 KB Output is correct
89 Correct 21 ms 37604 KB Output is correct
90 Correct 67 ms 37640 KB Output is correct
91 Correct 239 ms 84472 KB Output is correct
92 Correct 42 ms 84016 KB Output is correct
93 Correct 123 ms 84276 KB Output is correct
94 Correct 4 ms 8652 KB Output is correct
95 Correct 15 ms 8524 KB Output is correct
96 Correct 1 ms 1076 KB Output is correct
97 Correct 1 ms 1100 KB Output is correct
98 Correct 0 ms 332 KB Output is correct
99 Correct 0 ms 332 KB Output is correct