oj.uz

Submission #295313

# Submission time Handle Problem Language Result Execution time Memory
295313 2020-09-09T15:32:14 Z 임성재(#5809) Treatment Project (JOI20_treatment) C++17
4 / 100
 217 ms 15080 KB 
#include<bits/stdc++.h>
using namespace std;

#define fast ios::sync_with_stdio(false);
#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, m;
int t[100010];
int l[100010];
int r[100010];
int c[100010];

vector<int> com;
vector<int> v;

ll dp[300010];
ll tree[1200010];

void update(int node, int s, int e, int i) {
	if(s == e) {
		tree[node] = dp[i];
		return;
	}

	int m = s + e >> 1;

	if(i <= m) update(node*2, s, m, i);
	else update(node*2+1, m+1, e, i);

	tree[node] = min(tree[node*2], tree[node*2+1]);
}

ll cal(int node, int s, int e, int l, int r) {
	if(r < s || e < l) return INF;
	if(l <= s && e <= r) return tree[node];

	return min(cal(node*2, s, (s+e)/2, l, r), cal(node*2+1, (s+e)/2+1, e, l, r));
}

int main() {
	fast;

	cin >> n >> m;

	for(int i=0; i<m; i++) {
		cin >> t[i] >> l[i] >> r[i] >> c[i];

		v.eb(i);
		com.eb(l[i]-1);
		com.eb(l[i]);
		com.eb(r[i]);
	}

	com.eb(0);
	com.eb(n);

	sort(all(com));
	com.erase(unique(all(com)), com.end());

	sort(all(v), [&] (int i, int j) {
		return r[i] < r[j];
	});

	for(int i=1; i<com.size(); i++)
		dp[i] = INF, update(1, 0, com.size()-1, i);

	for(auto i : v) {
		r[i] = lower_bound(all(com), r[i]) - com.begin();
		l[i] = lower_bound(all(com), l[i]) - com.begin();

		dp[r[i]] = min(dp[r[i]], cal(1, 0, com.size()-1, l[i]-1, r[i]) + c[i]);
		update(1, 0, com.size()-1, r[i]);
	}

	if(dp[com.size()-1] == INF) cout << -1;
	else cout << dp[com.size()-1];
}

Compilation message

treatment.cpp: In function 'void update(int, int, int, int)':
treatment.cpp:37:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   37 |  int m = s + e >> 1;
      |          ~~^~~
treatment.cpp: In function 'int main()':
treatment.cpp:76:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   76 |  for(int i=1; i<com.size(); i++)
      |               ~^~~~~~~~~~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 168 ms 9704 KB Output is correct
2 Correct 173 ms 9704 KB Output is correct
3 Correct 127 ms 5992 KB Output is correct
4 Correct 121 ms 5864 KB Output is correct
5 Correct 73 ms 5104 KB Output is correct
6 Correct 81 ms 5104 KB Output is correct
7 Correct 99 ms 5104 KB Output is correct
8 Correct 80 ms 5104 KB Output is correct
9 Correct 87 ms 5232 KB Output is correct
10 Correct 108 ms 5224 KB Output is correct
11 Correct 202 ms 10476 KB Output is correct
12 Correct 202 ms 10472 KB Output is correct
13 Correct 208 ms 14952 KB Output is correct
14 Correct 217 ms 15080 KB Output is correct
15 Correct 199 ms 14956 KB Output is correct
16 Correct 201 ms 14948 KB Output is correct
17 Correct 193 ms 15080 KB Output is correct
18 Correct 193 ms 10472 KB Output is correct

Subtask #2
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Incorrect 0 ms 384 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Incorrect 0 ms 384 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 168 ms 9704 KB Output is correct
2 Correct 173 ms 9704 KB Output is correct
3 Correct 127 ms 5992 KB Output is correct
4 Correct 121 ms 5864 KB Output is correct
5 Correct 73 ms 5104 KB Output is correct
6 Correct 81 ms 5104 KB Output is correct
7 Correct 99 ms 5104 KB Output is correct
8 Correct 80 ms 5104 KB Output is correct
9 Correct 87 ms 5232 KB Output is correct
10 Correct 108 ms 5224 KB Output is correct
11 Correct 202 ms 10476 KB Output is correct
12 Correct 202 ms 10472 KB Output is correct
13 Correct 208 ms 14952 KB Output is correct
14 Correct 217 ms 15080 KB Output is correct
15 Correct 199 ms 14956 KB Output is correct
16 Correct 201 ms 14948 KB Output is correct
17 Correct 193 ms 15080 KB Output is correct
18 Correct 193 ms 10472 KB Output is correct
19 Correct 0 ms 384 KB Output is correct
20 Incorrect 0 ms 384 KB Output isn't correct
21 Halted 0 ms 0 KB -