#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
using db = double;
#define conqueror_of_uraqt int main()
#define xuong cout << "\n"
#define debug(x) cout << #x << ": " << x << endl
#define rep(i,be,en) for(int i = (be); i<=(en); ++i)
#define fod(i,be,en) for(int i = (be); i>=(en); --i)
#define each(x, a) for(auto &x: a)
#define x first
#define y second
#define vec vector
#define endl "\n"
#define all(x) (x).begin(),(x).end()
#define sz(x) (int)(x).size()
#define uni(a) ((a).erase(unique(all(a)),(a).end()))
#define C make_pair
#define file "input"
const int mod = 1e9+7;
template<class T> bool ckmax(T &a, T b) {if (a<b) return a=b,1; return 0;}
template<class T> bool ckmin(T &a, T b) {if (a>b) return a=b,1; return 0;}
int add(int a, int b) { a+=b; if (a>=mod) a-=mod; return a; }
int neg(int a, int b) { a-=b; if (a<0) a+=mod; return a; }
int mul(int a, int b) { return (1LL*a*b) % mod; }
const db eps = 0.0000000001;
const int M[2] = {(int)1e9+9277, (int)1e9+5277}, INF = 1e9+9, mxN = 2e5+5;
int n, m, a[mxN], dp[mxN];
map<int, int> mp;
void ins(int v1, int v2) {
auto it = mp.lower_bound(v1);
if (it!=mp.end() && it->y <= v2) return;
it = mp.insert(it, C(v1, v2)); it->y = v2;
while (it!=mp.begin() && prev(it)->y >= v2) mp.erase(prev(it));
}
int query(int x) {
auto it = mp.lower_bound(x);
if (it == mp.end()) return INF;
return it->y;
}
void work() {
cin >> n >> m;
for(int i=1; i<=n; ++i) {
cin >> a[i];
}
memset(dp, 0x3f, sizeof(dp));
dp[0] = 0;
int delta_m = 0, delta_j = 0;
for(int i=1; i<=n+1; ++i) {
delta_m += m; delta_j += 1;
ins(a[i-1] - delta_m, dp[i-1] - delta_j);
ckmin(dp[i], query(a[i] - delta_m - m) + delta_j);
}
cout << dp[n+1];
}
conqueror_of_uraqt {
ios::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
if (fopen(file".inp", "r")) {
freopen(file".inp", "r", stdin);
freopen(file".out", "w", stdout);
}
work();
return 0;
}
Compilation message
triusis.cpp: In function 'int main()':
triusis.cpp:74:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
74 | freopen(file".inp", "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
triusis.cpp:75:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
75 | freopen(file".out", "w", stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
980 KB |
Output is correct |
2 |
Correct |
1 ms |
980 KB |
Output is correct |
3 |
Correct |
1 ms |
980 KB |
Output is correct |
4 |
Correct |
1 ms |
980 KB |
Output is correct |
5 |
Correct |
1 ms |
980 KB |
Output is correct |
6 |
Correct |
1 ms |
1108 KB |
Output is correct |
7 |
Correct |
1 ms |
980 KB |
Output is correct |
8 |
Correct |
1 ms |
980 KB |
Output is correct |
9 |
Correct |
1 ms |
980 KB |
Output is correct |
10 |
Correct |
1 ms |
980 KB |
Output is correct |
11 |
Correct |
1 ms |
980 KB |
Output is correct |
12 |
Correct |
1 ms |
980 KB |
Output is correct |
13 |
Correct |
1 ms |
980 KB |
Output is correct |
14 |
Correct |
1 ms |
980 KB |
Output is correct |
15 |
Correct |
1 ms |
980 KB |
Output is correct |
16 |
Correct |
1 ms |
980 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
980 KB |
Output is correct |
2 |
Correct |
1 ms |
980 KB |
Output is correct |
3 |
Correct |
1 ms |
980 KB |
Output is correct |
4 |
Correct |
1 ms |
980 KB |
Output is correct |
5 |
Correct |
1 ms |
980 KB |
Output is correct |
6 |
Correct |
1 ms |
1108 KB |
Output is correct |
7 |
Correct |
1 ms |
980 KB |
Output is correct |
8 |
Correct |
1 ms |
980 KB |
Output is correct |
9 |
Correct |
1 ms |
980 KB |
Output is correct |
10 |
Correct |
1 ms |
980 KB |
Output is correct |
11 |
Correct |
1 ms |
980 KB |
Output is correct |
12 |
Correct |
1 ms |
980 KB |
Output is correct |
13 |
Correct |
1 ms |
980 KB |
Output is correct |
14 |
Correct |
1 ms |
980 KB |
Output is correct |
15 |
Correct |
1 ms |
980 KB |
Output is correct |
16 |
Correct |
1 ms |
980 KB |
Output is correct |
17 |
Correct |
1 ms |
980 KB |
Output is correct |
18 |
Correct |
1 ms |
980 KB |
Output is correct |
19 |
Correct |
1 ms |
980 KB |
Output is correct |
20 |
Correct |
2 ms |
1236 KB |
Output is correct |
21 |
Correct |
1 ms |
1236 KB |
Output is correct |
22 |
Correct |
2 ms |
1108 KB |
Output is correct |
23 |
Correct |
2 ms |
1236 KB |
Output is correct |
24 |
Correct |
2 ms |
1236 KB |
Output is correct |
25 |
Correct |
2 ms |
1236 KB |
Output is correct |
26 |
Correct |
2 ms |
1236 KB |
Output is correct |
27 |
Correct |
1 ms |
1108 KB |
Output is correct |
28 |
Correct |
1 ms |
1108 KB |
Output is correct |
29 |
Correct |
1 ms |
1364 KB |
Output is correct |
30 |
Correct |
2 ms |
1236 KB |
Output is correct |
31 |
Correct |
2 ms |
1236 KB |
Output is correct |
32 |
Correct |
2 ms |
1236 KB |
Output is correct |
33 |
Correct |
1 ms |
1236 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
980 KB |
Output is correct |
2 |
Correct |
1 ms |
980 KB |
Output is correct |
3 |
Correct |
1 ms |
980 KB |
Output is correct |
4 |
Correct |
2 ms |
1236 KB |
Output is correct |
5 |
Correct |
1 ms |
1236 KB |
Output is correct |
6 |
Correct |
2 ms |
1108 KB |
Output is correct |
7 |
Correct |
2 ms |
1236 KB |
Output is correct |
8 |
Correct |
2 ms |
1236 KB |
Output is correct |
9 |
Correct |
2 ms |
1236 KB |
Output is correct |
10 |
Correct |
2 ms |
1236 KB |
Output is correct |
11 |
Correct |
1 ms |
1108 KB |
Output is correct |
12 |
Correct |
1 ms |
1108 KB |
Output is correct |
13 |
Correct |
1 ms |
1364 KB |
Output is correct |
14 |
Correct |
2 ms |
1236 KB |
Output is correct |
15 |
Correct |
2 ms |
1236 KB |
Output is correct |
16 |
Correct |
2 ms |
1236 KB |
Output is correct |
17 |
Correct |
1 ms |
1236 KB |
Output is correct |
18 |
Correct |
1 ms |
980 KB |
Output is correct |
19 |
Correct |
1 ms |
980 KB |
Output is correct |
20 |
Correct |
1 ms |
980 KB |
Output is correct |
21 |
Correct |
1 ms |
980 KB |
Output is correct |
22 |
Correct |
1 ms |
980 KB |
Output is correct |
23 |
Correct |
1 ms |
1108 KB |
Output is correct |
24 |
Correct |
1 ms |
980 KB |
Output is correct |
25 |
Correct |
1 ms |
980 KB |
Output is correct |
26 |
Correct |
1 ms |
980 KB |
Output is correct |
27 |
Correct |
1 ms |
980 KB |
Output is correct |
28 |
Correct |
1 ms |
980 KB |
Output is correct |
29 |
Correct |
1 ms |
980 KB |
Output is correct |
30 |
Correct |
1 ms |
980 KB |
Output is correct |
31 |
Correct |
1 ms |
980 KB |
Output is correct |
32 |
Correct |
1 ms |
980 KB |
Output is correct |
33 |
Correct |
1 ms |
980 KB |
Output is correct |
34 |
Correct |
2 ms |
1108 KB |
Output is correct |
35 |
Correct |
2 ms |
1108 KB |
Output is correct |
36 |
Correct |
2 ms |
1236 KB |
Output is correct |
37 |
Correct |
2 ms |
1236 KB |
Output is correct |
38 |
Correct |
1 ms |
1108 KB |
Output is correct |
39 |
Correct |
1 ms |
1108 KB |
Output is correct |
40 |
Correct |
2 ms |
1236 KB |
Output is correct |
41 |
Correct |
1 ms |
1108 KB |
Output is correct |
42 |
Correct |
2 ms |
1236 KB |
Output is correct |
43 |
Correct |
2 ms |
1236 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
1108 KB |
Output is correct |
2 |
Correct |
2 ms |
1108 KB |
Output is correct |
3 |
Correct |
2 ms |
1236 KB |
Output is correct |
4 |
Correct |
2 ms |
1236 KB |
Output is correct |
5 |
Correct |
1 ms |
1108 KB |
Output is correct |
6 |
Correct |
1 ms |
1108 KB |
Output is correct |
7 |
Correct |
2 ms |
1236 KB |
Output is correct |
8 |
Correct |
1 ms |
1108 KB |
Output is correct |
9 |
Correct |
2 ms |
1236 KB |
Output is correct |
10 |
Correct |
2 ms |
1236 KB |
Output is correct |
11 |
Correct |
1 ms |
980 KB |
Output is correct |
12 |
Correct |
1 ms |
980 KB |
Output is correct |
13 |
Correct |
1 ms |
980 KB |
Output is correct |
14 |
Correct |
2 ms |
1236 KB |
Output is correct |
15 |
Correct |
1 ms |
1236 KB |
Output is correct |
16 |
Correct |
2 ms |
1108 KB |
Output is correct |
17 |
Correct |
2 ms |
1236 KB |
Output is correct |
18 |
Correct |
2 ms |
1236 KB |
Output is correct |
19 |
Correct |
2 ms |
1236 KB |
Output is correct |
20 |
Correct |
2 ms |
1236 KB |
Output is correct |
21 |
Correct |
1 ms |
1108 KB |
Output is correct |
22 |
Correct |
1 ms |
1108 KB |
Output is correct |
23 |
Correct |
1 ms |
1364 KB |
Output is correct |
24 |
Correct |
2 ms |
1236 KB |
Output is correct |
25 |
Correct |
2 ms |
1236 KB |
Output is correct |
26 |
Correct |
2 ms |
1236 KB |
Output is correct |
27 |
Correct |
1 ms |
1236 KB |
Output is correct |
28 |
Correct |
1 ms |
980 KB |
Output is correct |
29 |
Correct |
1 ms |
980 KB |
Output is correct |
30 |
Correct |
1 ms |
980 KB |
Output is correct |
31 |
Correct |
1 ms |
980 KB |
Output is correct |
32 |
Correct |
1 ms |
980 KB |
Output is correct |
33 |
Correct |
1 ms |
1108 KB |
Output is correct |
34 |
Correct |
1 ms |
980 KB |
Output is correct |
35 |
Correct |
1 ms |
980 KB |
Output is correct |
36 |
Correct |
1 ms |
980 KB |
Output is correct |
37 |
Correct |
1 ms |
980 KB |
Output is correct |
38 |
Correct |
1 ms |
980 KB |
Output is correct |
39 |
Correct |
1 ms |
980 KB |
Output is correct |
40 |
Correct |
1 ms |
980 KB |
Output is correct |
41 |
Correct |
1 ms |
980 KB |
Output is correct |
42 |
Correct |
1 ms |
980 KB |
Output is correct |
43 |
Correct |
1 ms |
980 KB |
Output is correct |
44 |
Correct |
66 ms |
11152 KB |
Output is correct |
45 |
Correct |
52 ms |
1904 KB |
Output is correct |
46 |
Correct |
52 ms |
1936 KB |
Output is correct |
47 |
Correct |
51 ms |
1896 KB |
Output is correct |
48 |
Correct |
50 ms |
9604 KB |
Output is correct |
49 |
Correct |
68 ms |
10940 KB |
Output is correct |
50 |
Correct |
26 ms |
1828 KB |
Output is correct |
51 |
Correct |
26 ms |
1868 KB |
Output is correct |
52 |
Correct |
51 ms |
6584 KB |
Output is correct |
53 |
Correct |
22 ms |
1876 KB |
Output is correct |
54 |
Correct |
52 ms |
8620 KB |
Output is correct |
55 |
Correct |
55 ms |
8652 KB |
Output is correct |