| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 284246 |
2020-08-27T04:57:37 Z |
임성재(#5754) |
Discharging (NOI20_discharging) |
C++17 |
|
852 ms |
18168 KB |
#include<bits/stdc++.h>
using namespace std;
#define fast ios::sync_with_stdio(false); cin.tie(0);
#define fi first
#define se second
#define em emplace
#define eb emplace_back
#define mp make_pair
#define all(v) (v).begin(), (v).end()
typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
const int inf = 1e9;
const ll INF = 1e18;
int n;
ll t[1000010];
ll dp[1000010];
vector<pll> v;
bool cross(int i, int j, ll x) {
return v[i].fi * x + v[i].se > v[j].fi * x + v[j].se;
}
bool chk(pll x) {
pll f = v[v.size()-2];
pll s = v[v.size()-1];
//cout << (x.se - s.se) * (f.fi - x.fi) << "!! " << (x.se - f.se) * (s.fi - x.fi) << endl;
return (x.se - s.se) * (f.fi - x.fi) <= (x.se - f.se) * (s.fi - x.fi);
}
int main() {
cin >> n;
for(int i=1; i<=n; i++) {
cin >> t[i];
t[i] = max(t[i], t[i-1]);
}
v.eb(n, 0);
int idx = 0;
for(int i=1; i<=n; i++) {
dp[i] = INF;
if(t[i] == t[i+1]) continue;
while(idx+1 < v.size()) {
if(cross(idx, idx+1, t[i])) idx++;
else break;
}
dp[i] = v[idx].fi * t[i] + v[idx].se;
while(v.size() > 1 && chk(mp(n-i, dp[i]))) v.pop_back();
v.eb(n - i, dp[i]);
/*cout << i << "\n";
for(auto j : v) {
cout << j.fi << " " << j.se << "\n";
}
cout << dp[i] << " " << v.size() << "\n";
cout << "\n";*/
}
cout << dp[n];
}
Compilation message
Discharging.cpp: In function 'int main()':
Discharging.cpp:52:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
52 | while(idx+1 < v.size()) {
| ~~~~~~^~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
384 KB |
Output is correct |
| 2 |
Correct |
1 ms |
384 KB |
Output is correct |
| 3 |
Correct |
0 ms |
384 KB |
Output is correct |
| 4 |
Correct |
1 ms |
384 KB |
Output is correct |
| 5 |
Correct |
0 ms |
384 KB |
Output is correct |
| 6 |
Correct |
1 ms |
384 KB |
Output is correct |
| 7 |
Correct |
0 ms |
384 KB |
Output is correct |
| 8 |
Correct |
0 ms |
276 KB |
Output is correct |
| 9 |
Correct |
1 ms |
256 KB |
Output is correct |
| 10 |
Correct |
1 ms |
416 KB |
Output is correct |
| 11 |
Correct |
0 ms |
384 KB |
Output is correct |
| 12 |
Correct |
1 ms |
384 KB |
Output is correct |
| 13 |
Correct |
1 ms |
384 KB |
Output is correct |
| 14 |
Correct |
1 ms |
384 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
384 KB |
Output is correct |
| 2 |
Correct |
1 ms |
384 KB |
Output is correct |
| 3 |
Correct |
1 ms |
384 KB |
Output is correct |
| 4 |
Correct |
1 ms |
384 KB |
Output is correct |
| 5 |
Correct |
1 ms |
384 KB |
Output is correct |
| 6 |
Correct |
1 ms |
384 KB |
Output is correct |
| 7 |
Correct |
1 ms |
384 KB |
Output is correct |
| 8 |
Correct |
2 ms |
384 KB |
Output is correct |
| 9 |
Correct |
2 ms |
384 KB |
Output is correct |
| 10 |
Correct |
3 ms |
384 KB |
Output is correct |
| 11 |
Correct |
2 ms |
384 KB |
Output is correct |
| 12 |
Correct |
1 ms |
384 KB |
Output is correct |
| 13 |
Correct |
1 ms |
384 KB |
Output is correct |
| 14 |
Correct |
1 ms |
384 KB |
Output is correct |
| 15 |
Correct |
1 ms |
384 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
384 KB |
Output is correct |
| 2 |
Correct |
1 ms |
384 KB |
Output is correct |
| 3 |
Correct |
1 ms |
384 KB |
Output is correct |
| 4 |
Correct |
1 ms |
384 KB |
Output is correct |
| 5 |
Correct |
1 ms |
384 KB |
Output is correct |
| 6 |
Correct |
1 ms |
384 KB |
Output is correct |
| 7 |
Correct |
1 ms |
384 KB |
Output is correct |
| 8 |
Correct |
2 ms |
384 KB |
Output is correct |
| 9 |
Correct |
2 ms |
384 KB |
Output is correct |
| 10 |
Correct |
3 ms |
384 KB |
Output is correct |
| 11 |
Correct |
2 ms |
384 KB |
Output is correct |
| 12 |
Correct |
1 ms |
384 KB |
Output is correct |
| 13 |
Correct |
1 ms |
384 KB |
Output is correct |
| 14 |
Correct |
1 ms |
384 KB |
Output is correct |
| 15 |
Correct |
1 ms |
384 KB |
Output is correct |
| 16 |
Correct |
511 ms |
18168 KB |
Output is correct |
| 17 |
Correct |
568 ms |
17876 KB |
Output is correct |
| 18 |
Correct |
463 ms |
17912 KB |
Output is correct |
| 19 |
Correct |
570 ms |
17912 KB |
Output is correct |
| 20 |
Correct |
555 ms |
18008 KB |
Output is correct |
| 21 |
Correct |
560 ms |
17784 KB |
Output is correct |
| 22 |
Correct |
532 ms |
17804 KB |
Output is correct |
| 23 |
Correct |
608 ms |
17912 KB |
Output is correct |
| 24 |
Correct |
577 ms |
18008 KB |
Output is correct |
| 25 |
Correct |
596 ms |
17784 KB |
Output is correct |
| 26 |
Correct |
649 ms |
17808 KB |
Output is correct |
| 27 |
Correct |
504 ms |
17784 KB |
Output is correct |
| 28 |
Correct |
580 ms |
17784 KB |
Output is correct |
| 29 |
Correct |
581 ms |
17784 KB |
Output is correct |
| 30 |
Correct |
602 ms |
17784 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
832 ms |
18040 KB |
Output is correct |
| 2 |
Correct |
835 ms |
17528 KB |
Output is correct |
| 3 |
Correct |
840 ms |
17492 KB |
Output is correct |
| 4 |
Correct |
833 ms |
17528 KB |
Output is correct |
| 5 |
Correct |
838 ms |
17528 KB |
Output is correct |
| 6 |
Correct |
832 ms |
17528 KB |
Output is correct |
| 7 |
Correct |
832 ms |
17460 KB |
Output is correct |
| 8 |
Correct |
852 ms |
17528 KB |
Output is correct |
| 9 |
Correct |
846 ms |
17424 KB |
Output is correct |
| 10 |
Correct |
844 ms |
17556 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
384 KB |
Output is correct |
| 2 |
Correct |
1 ms |
384 KB |
Output is correct |
| 3 |
Correct |
0 ms |
384 KB |
Output is correct |
| 4 |
Correct |
1 ms |
384 KB |
Output is correct |
| 5 |
Correct |
0 ms |
384 KB |
Output is correct |
| 6 |
Correct |
1 ms |
384 KB |
Output is correct |
| 7 |
Correct |
0 ms |
384 KB |
Output is correct |
| 8 |
Correct |
0 ms |
276 KB |
Output is correct |
| 9 |
Correct |
1 ms |
256 KB |
Output is correct |
| 10 |
Correct |
1 ms |
416 KB |
Output is correct |
| 11 |
Correct |
0 ms |
384 KB |
Output is correct |
| 12 |
Correct |
1 ms |
384 KB |
Output is correct |
| 13 |
Correct |
1 ms |
384 KB |
Output is correct |
| 14 |
Correct |
1 ms |
384 KB |
Output is correct |
| 15 |
Correct |
2 ms |
384 KB |
Output is correct |
| 16 |
Correct |
1 ms |
384 KB |
Output is correct |
| 17 |
Correct |
1 ms |
384 KB |
Output is correct |
| 18 |
Correct |
1 ms |
384 KB |
Output is correct |
| 19 |
Correct |
1 ms |
384 KB |
Output is correct |
| 20 |
Correct |
1 ms |
384 KB |
Output is correct |
| 21 |
Correct |
1 ms |
384 KB |
Output is correct |
| 22 |
Correct |
2 ms |
384 KB |
Output is correct |
| 23 |
Correct |
2 ms |
384 KB |
Output is correct |
| 24 |
Correct |
3 ms |
384 KB |
Output is correct |
| 25 |
Correct |
2 ms |
384 KB |
Output is correct |
| 26 |
Correct |
1 ms |
384 KB |
Output is correct |
| 27 |
Correct |
1 ms |
384 KB |
Output is correct |
| 28 |
Correct |
1 ms |
384 KB |
Output is correct |
| 29 |
Correct |
1 ms |
384 KB |
Output is correct |
| 30 |
Correct |
1 ms |
384 KB |
Output is correct |
| 31 |
Correct |
1 ms |
384 KB |
Output is correct |
| 32 |
Correct |
1 ms |
384 KB |
Output is correct |
| 33 |
Correct |
1 ms |
384 KB |
Output is correct |
| 34 |
Correct |
2 ms |
384 KB |
Output is correct |
| 35 |
Correct |
1 ms |
384 KB |
Output is correct |
| 36 |
Correct |
1 ms |
384 KB |
Output is correct |
| 37 |
Correct |
1 ms |
384 KB |
Output is correct |
| 38 |
Correct |
1 ms |
384 KB |
Output is correct |
| 39 |
Correct |
1 ms |
384 KB |
Output is correct |
| 40 |
Correct |
2 ms |
384 KB |
Output is correct |
| 41 |
Correct |
1 ms |
384 KB |
Output is correct |
| 42 |
Correct |
1 ms |
384 KB |
Output is correct |
| 43 |
Correct |
2 ms |
384 KB |
Output is correct |
| 44 |
Correct |
1 ms |
384 KB |
Output is correct |
| 45 |
Correct |
1 ms |
384 KB |
Output is correct |
| 46 |
Correct |
1 ms |
384 KB |
Output is correct |
| 47 |
Correct |
1 ms |
384 KB |
Output is correct |
| 48 |
Correct |
1 ms |
384 KB |
Output is correct |
| 49 |
Correct |
1 ms |
384 KB |
Output is correct |
| 50 |
Correct |
1 ms |
384 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
384 KB |
Output is correct |
| 2 |
Correct |
1 ms |
384 KB |
Output is correct |
| 3 |
Correct |
0 ms |
384 KB |
Output is correct |
| 4 |
Correct |
1 ms |
384 KB |
Output is correct |
| 5 |
Correct |
0 ms |
384 KB |
Output is correct |
| 6 |
Correct |
1 ms |
384 KB |
Output is correct |
| 7 |
Correct |
0 ms |
384 KB |
Output is correct |
| 8 |
Correct |
0 ms |
276 KB |
Output is correct |
| 9 |
Correct |
1 ms |
256 KB |
Output is correct |
| 10 |
Correct |
1 ms |
416 KB |
Output is correct |
| 11 |
Correct |
0 ms |
384 KB |
Output is correct |
| 12 |
Correct |
1 ms |
384 KB |
Output is correct |
| 13 |
Correct |
1 ms |
384 KB |
Output is correct |
| 14 |
Correct |
1 ms |
384 KB |
Output is correct |
| 15 |
Correct |
2 ms |
384 KB |
Output is correct |
| 16 |
Correct |
1 ms |
384 KB |
Output is correct |
| 17 |
Correct |
1 ms |
384 KB |
Output is correct |
| 18 |
Correct |
1 ms |
384 KB |
Output is correct |
| 19 |
Correct |
1 ms |
384 KB |
Output is correct |
| 20 |
Correct |
1 ms |
384 KB |
Output is correct |
| 21 |
Correct |
1 ms |
384 KB |
Output is correct |
| 22 |
Correct |
2 ms |
384 KB |
Output is correct |
| 23 |
Correct |
2 ms |
384 KB |
Output is correct |
| 24 |
Correct |
3 ms |
384 KB |
Output is correct |
| 25 |
Correct |
2 ms |
384 KB |
Output is correct |
| 26 |
Correct |
1 ms |
384 KB |
Output is correct |
| 27 |
Correct |
1 ms |
384 KB |
Output is correct |
| 28 |
Correct |
1 ms |
384 KB |
Output is correct |
| 29 |
Correct |
1 ms |
384 KB |
Output is correct |
| 30 |
Correct |
511 ms |
18168 KB |
Output is correct |
| 31 |
Correct |
568 ms |
17876 KB |
Output is correct |
| 32 |
Correct |
463 ms |
17912 KB |
Output is correct |
| 33 |
Correct |
570 ms |
17912 KB |
Output is correct |
| 34 |
Correct |
555 ms |
18008 KB |
Output is correct |
| 35 |
Correct |
560 ms |
17784 KB |
Output is correct |
| 36 |
Correct |
532 ms |
17804 KB |
Output is correct |
| 37 |
Correct |
608 ms |
17912 KB |
Output is correct |
| 38 |
Correct |
577 ms |
18008 KB |
Output is correct |
| 39 |
Correct |
596 ms |
17784 KB |
Output is correct |
| 40 |
Correct |
649 ms |
17808 KB |
Output is correct |
| 41 |
Correct |
504 ms |
17784 KB |
Output is correct |
| 42 |
Correct |
580 ms |
17784 KB |
Output is correct |
| 43 |
Correct |
581 ms |
17784 KB |
Output is correct |
| 44 |
Correct |
602 ms |
17784 KB |
Output is correct |
| 45 |
Correct |
832 ms |
18040 KB |
Output is correct |
| 46 |
Correct |
835 ms |
17528 KB |
Output is correct |
| 47 |
Correct |
840 ms |
17492 KB |
Output is correct |
| 48 |
Correct |
833 ms |
17528 KB |
Output is correct |
| 49 |
Correct |
838 ms |
17528 KB |
Output is correct |
| 50 |
Correct |
832 ms |
17528 KB |
Output is correct |
| 51 |
Correct |
832 ms |
17460 KB |
Output is correct |
| 52 |
Correct |
852 ms |
17528 KB |
Output is correct |
| 53 |
Correct |
846 ms |
17424 KB |
Output is correct |
| 54 |
Correct |
844 ms |
17556 KB |
Output is correct |
| 55 |
Correct |
1 ms |
384 KB |
Output is correct |
| 56 |
Correct |
1 ms |
384 KB |
Output is correct |
| 57 |
Correct |
1 ms |
384 KB |
Output is correct |
| 58 |
Correct |
1 ms |
384 KB |
Output is correct |
| 59 |
Correct |
2 ms |
384 KB |
Output is correct |
| 60 |
Correct |
1 ms |
384 KB |
Output is correct |
| 61 |
Correct |
1 ms |
384 KB |
Output is correct |
| 62 |
Correct |
1 ms |
384 KB |
Output is correct |
| 63 |
Correct |
1 ms |
384 KB |
Output is correct |
| 64 |
Correct |
1 ms |
384 KB |
Output is correct |
| 65 |
Correct |
2 ms |
384 KB |
Output is correct |
| 66 |
Correct |
1 ms |
384 KB |
Output is correct |
| 67 |
Correct |
1 ms |
384 KB |
Output is correct |
| 68 |
Correct |
2 ms |
384 KB |
Output is correct |
| 69 |
Correct |
1 ms |
384 KB |
Output is correct |
| 70 |
Correct |
1 ms |
384 KB |
Output is correct |
| 71 |
Correct |
1 ms |
384 KB |
Output is correct |
| 72 |
Correct |
1 ms |
384 KB |
Output is correct |
| 73 |
Correct |
1 ms |
384 KB |
Output is correct |
| 74 |
Correct |
1 ms |
384 KB |
Output is correct |
| 75 |
Correct |
1 ms |
384 KB |
Output is correct |
| 76 |
Correct |
568 ms |
17656 KB |
Output is correct |
| 77 |
Correct |
573 ms |
17656 KB |
Output is correct |
| 78 |
Correct |
545 ms |
17248 KB |
Output is correct |
| 79 |
Correct |
549 ms |
17276 KB |
Output is correct |
| 80 |
Incorrect |
595 ms |
17400 KB |
Output isn't correct |
| 81 |
Halted |
0 ms |
0 KB |
- |
