oj.uz

답안 #123335

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
123335 2019-07-01T07:33:12 Z 구재현(#3026) Two Dishes (JOI19_dishes) C++14
10 / 100
 35 ms 17144 KB 
#include <bits/stdc++.h>
using namespace std;
const int MAXN = 1000005;
const int MAXT = 2100000;
const int mod = 1e9 + 7;
using lint = long long;
using pi = pair<int, int>;

struct pnt{
	int x, y;
	lint c;
	bool operator<(const pnt &p)const{
		return pi(x, y) < pi(p.x, p.y);
	}
};

struct seg{
	lint lazy[MAXT], tree[MAXT];
	void lazydown(int p){
		lazy[2*p] += lazy[p];
		lazy[2*p+1] += lazy[p];
		tree[2*p] += lazy[p];
		tree[2*p+1] += lazy[p];
		lazy[p] = 0;
		tree[2*p] = max(tree[2*p], tree[p]);
		tree[2*p+1] = max(tree[2*p+1], tree[p]);
		tree[p] = 0;
	}
	void add(int s, int e, int ps, int pe, int p, lint v){
		if(e < ps || pe < s) return;
		if(s <= ps && pe <= e){
			lazy[p] += v;
			tree[p] += v;
			return;
		}
		int pm = (ps + pe) / 2;
		lazydown(p);
		add(s, e, ps, pm, 2*p, v);
		add(s, e, pm + 1, pe, 2*p + 1, v);
	}
	void upperize(int s, int e, int ps, int pe, int p, lint v){
		if(e < ps || pe < s) return;
		if(s <= ps && pe <= e){
			tree[p] = max(tree[p], v);
			return;
		}
		int pm = (ps + pe) / 2;
		lazydown(p);
		upperize(s, e, ps, pm, 2*p, v);
		upperize(s, e, pm+1, pe, 2*p+1, v);
	}
	lint query(int pos, int s, int e, int p){
		if(s == e) return tree[p];
		int m = (s + e) / 2;
		lazydown(p);
		if(pos <= m) return query(pos, s, m, 2*p);
		return query(pos, m+1, e, 2*p+1);
	}
}seg;

int n, m;
lint a[MAXN], s[MAXN], p[MAXN];
lint b[MAXN], t[MAXN], q[MAXN];
int da[MAXN], db[MAXN];
lint dp[MAXN];
vector<pnt> v, w;

lint getCostV(int s, int e, int x){
	lint ret = 0;
	for(auto &i : v){
		if(s <= i.x && i.x <= e && i.y >= x) ret += i.c; 
	}
	return ret;
}

lint getCostW(int s, int e, int x){
	lint ret = 0;
	for(auto &i : w){
		if(s <= i.x && i.x <= e && i.y <= x) ret += i.c; 
	}
	return ret;
}

int main(){
	scanf("%d %d",&n,&m);
	if(n > 2000 || m > 2000) return 0;
	for(int i=1; i<=n; i++){
		scanf("%lld %lld %lld",&a[i],&s[i],&p[i]);
		a[i] += a[i-1];
	}
	for(int i=1; i<=m; i++){
		scanf("%lld %lld %lld",&b[i],&t[i],&q[i]);
		b[i] += b[i-1];
	}
	lint ret = 0;
	v.push_back({0, 0, 0});
	for(int i=1; i<=n; i++){
		da[i] = upper_bound(b, b + m + 1, s[i] - a[i]) - b;
		if(da[i] > 0){
			if(p[i] > 0) v.push_back({i, da[i], p[i]});
			else w.push_back({i, da[i], -p[i]}), ret += p[i];
		}
	}
	for(int i=1; i<=m; i++){
		db[i] = upper_bound(a, a + n + 1, t[i] - b[i]) - a;
		if(db[i] > 0){
			if(q[i] > 0) w.push_back({db[i], i, q[i]});
			else v.push_back({db[i], i, -q[i]}), ret += q[i];
		}
	}
	sort(v.begin(), v.end());
	sort(w.begin(), w.end());
	v.push_back({n + 1, m + 1, 0});
	lint tree[MAXT] = {};
//	fill(tree + 1, tree + m + 2, -1e18);
	int pw = 0;
	for(int i=1; i<v.size(); ){
		int e = i;
		while(e < v.size() && v[e].x == v[i].x) e++;
		for(int j = i; j < e; j++){
			for(int k = 0; k <= v[j].y; k++) tree[k] += v[j].c;
		}
		while(pw < w.size() && w[pw].x <= v[i].x){
			for(int j = w[pw].y + 1; j <= m + 1; j++){
				tree[j] += w[pw].c;
			}
			pw++;
		}
		for(int j = i; j < e; j++){
			dp[j] = tree[v[j].y];
			for(int k = v[j].y; k <= m + 1; k++){
				tree[k] = max(tree[k], dp[j]);
			}
		}
		i = e;
	}
	lint dap = *max_element(tree, tree + MAXT);
	//dp[v.size() - 1];
	cout << ret + dap << endl;
}

Compilation message

dishes.cpp: In function 'int main()':
dishes.cpp:117:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=1; i<v.size(); ){
               ~^~~~~~~~~
dishes.cpp:119:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   while(e < v.size() && v[e].x == v[i].x) e++;
         ~~^~~~~~~~~~
dishes.cpp:123:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   while(pw < w.size() && w[pw].x <= v[i].x){
         ~~~^~~~~~~~~~
dishes.cpp:85:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d",&n,&m);
  ~~~~~^~~~~~~~~~~~~~~
dishes.cpp:88:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld %lld %lld",&a[i],&s[i],&p[i]);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
dishes.cpp:92:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld %lld %lld",&b[i],&t[i],&q[i]);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 376 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
3.0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Correct 18 ms 16888 KB Output is correct
2 Correct 18 ms 16760 KB Output is correct
3 Correct 18 ms 16760 KB Output is correct
4 Correct 17 ms 16760 KB Output is correct
5 Correct 18 ms 16888 KB Output is correct
6 Correct 18 ms 16760 KB Output is correct
7 Correct 18 ms 16760 KB Output is correct
8 Correct 18 ms 16888 KB Output is correct
9 Correct 18 ms 16760 KB Output is correct
10 Correct 18 ms 16760 KB Output is correct
11 Correct 17 ms 16808 KB Output is correct
12 Correct 18 ms 16760 KB Output is correct
13 Correct 18 ms 16888 KB Output is correct
14 Correct 19 ms 16888 KB Output is correct
15 Correct 18 ms 16888 KB Output is correct
16 Correct 18 ms 16888 KB Output is correct

Subtask #3
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 18 ms 16888 KB Output is correct
2 Correct 18 ms 16760 KB Output is correct
3 Correct 18 ms 16760 KB Output is correct
4 Correct 17 ms 16760 KB Output is correct
5 Correct 18 ms 16888 KB Output is correct
6 Correct 18 ms 16760 KB Output is correct
7 Correct 18 ms 16760 KB Output is correct
8 Correct 18 ms 16888 KB Output is correct
9 Correct 18 ms 16760 KB Output is correct
10 Correct 18 ms 16760 KB Output is correct
11 Correct 17 ms 16808 KB Output is correct
12 Correct 18 ms 16760 KB Output is correct
13 Correct 18 ms 16888 KB Output is correct
14 Correct 19 ms 16888 KB Output is correct
15 Correct 18 ms 16888 KB Output is correct
16 Correct 18 ms 16888 KB Output is correct
17 Correct 23 ms 17144 KB Output is correct
18 Correct 22 ms 17144 KB Output is correct
19 Correct 35 ms 17116 KB Output is correct
20 Correct 22 ms 17016 KB Output is correct
21 Correct 29 ms 17144 KB Output is correct
22 Correct 23 ms 17016 KB Output is correct
23 Correct 28 ms 17144 KB Output is correct

Subtask #4
0 / 39.0

# 결과 실행 시간 메모리 Grader output
1 Correct 18 ms 16888 KB Output is correct
2 Correct 18 ms 16760 KB Output is correct
3 Correct 18 ms 16760 KB Output is correct
4 Correct 17 ms 16760 KB Output is correct
5 Correct 18 ms 16888 KB Output is correct
6 Correct 18 ms 16760 KB Output is correct
7 Correct 18 ms 16760 KB Output is correct
8 Correct 18 ms 16888 KB Output is correct
9 Correct 18 ms 16760 KB Output is correct
10 Correct 18 ms 16760 KB Output is correct
11 Correct 17 ms 16808 KB Output is correct
12 Correct 18 ms 16760 KB Output is correct
13 Correct 18 ms 16888 KB Output is correct
14 Correct 19 ms 16888 KB Output is correct
15 Correct 18 ms 16888 KB Output is correct
16 Correct 18 ms 16888 KB Output is correct
17 Correct 23 ms 17144 KB Output is correct
18 Correct 22 ms 17144 KB Output is correct
19 Correct 35 ms 17116 KB Output is correct
20 Correct 22 ms 17016 KB Output is correct
21 Correct 29 ms 17144 KB Output is correct
22 Correct 23 ms 17016 KB Output is correct
23 Correct 28 ms 17144 KB Output is correct
24 Incorrect 2 ms 380 KB Output isn't correct
25 Halted 0 ms 0 KB -

Subtask #5
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 18 ms 16888 KB Output is correct
2 Correct 18 ms 16760 KB Output is correct
3 Correct 18 ms 16760 KB Output is correct
4 Correct 17 ms 16760 KB Output is correct
5 Correct 18 ms 16888 KB Output is correct
6 Correct 18 ms 16760 KB Output is correct
7 Correct 18 ms 16760 KB Output is correct
8 Correct 18 ms 16888 KB Output is correct
9 Correct 18 ms 16760 KB Output is correct
10 Correct 18 ms 16760 KB Output is correct
11 Correct 17 ms 16808 KB Output is correct
12 Correct 18 ms 16760 KB Output is correct
13 Correct 18 ms 16888 KB Output is correct
14 Correct 19 ms 16888 KB Output is correct
15 Correct 18 ms 16888 KB Output is correct
16 Correct 18 ms 16888 KB Output is correct
17 Correct 23 ms 17144 KB Output is correct
18 Correct 22 ms 17144 KB Output is correct
19 Correct 35 ms 17116 KB Output is correct
20 Correct 22 ms 17016 KB Output is correct
21 Correct 29 ms 17144 KB Output is correct
22 Correct 23 ms 17016 KB Output is correct
23 Correct 28 ms 17144 KB Output is correct
24 Incorrect 2 ms 380 KB Output isn't correct
25 Halted 0 ms 0 KB -

Subtask #6
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 18 ms 16888 KB Output is correct
2 Correct 18 ms 16760 KB Output is correct
3 Correct 18 ms 16760 KB Output is correct
4 Correct 17 ms 16760 KB Output is correct
5 Correct 18 ms 16888 KB Output is correct
6 Correct 18 ms 16760 KB Output is correct
7 Correct 18 ms 16760 KB Output is correct
8 Correct 18 ms 16888 KB Output is correct
9 Correct 18 ms 16760 KB Output is correct
10 Correct 18 ms 16760 KB Output is correct
11 Correct 17 ms 16808 KB Output is correct
12 Correct 18 ms 16760 KB Output is correct
13 Correct 18 ms 16888 KB Output is correct
14 Correct 19 ms 16888 KB Output is correct
15 Correct 18 ms 16888 KB Output is correct
16 Correct 18 ms 16888 KB Output is correct
17 Correct 23 ms 17144 KB Output is correct
18 Correct 22 ms 17144 KB Output is correct
19 Correct 35 ms 17116 KB Output is correct
20 Correct 22 ms 17016 KB Output is correct
21 Correct 29 ms 17144 KB Output is correct
22 Correct 23 ms 17016 KB Output is correct
23 Correct 28 ms 17144 KB Output is correct
24 Incorrect 2 ms 380 KB Output isn't correct
25 Halted 0 ms 0 KB -

Subtask #7
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 376 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 376 KB Output isn't correct
2 Halted 0 ms 0 KB -