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Submission #480106

# Submission time Handle Problem Language Result Execution time Memory
480106 2021-10-14T16:11:02 Z HynDuf Fire (JOI20_ho_t5) C++11
100 / 100
 263 ms 24340 KB 
#include <bits/stdc++.h>
 
#define pb push_back
 
using namespace std;
 
typedef pair<int, int> pii;
typedef long long ll;
typedef pair<ll, ll> pll;
 
const int MAX_N = 200000;
 
int N, Q;
int S[MAX_N+1];
 
struct ST{
	int t, l, r, idx;
	bool operator <(const ST &a)const{
		return t<a.t;
	}
};
 
vector<ST> vt;
 
 
struct SEG{
	struct NODE{
		int l, r;
		int mx;
	};
	vector<NODE> seg;
	int SZ;
	void add(){
		seg.pb({-1, -1, 0});
	}
	void Init(int x){
		SZ = x;
		add(); init(0, 1, SZ);
	}
	void init(int idx, int s, int e){
		if(s==e)	{
			seg[idx].mx = S[s];
			return;
		}
		seg[idx].l = seg.size(); add();
		seg[idx].r = seg.size(); add();
		init(seg[idx].l, s, (s+e)/2);
		init(seg[idx].r, (s+e)/2+1, e);
		seg[idx].mx = max(seg[seg[idx].l].mx, seg[seg[idx].r].mx);
	}
	int  Mx(int x, int y){
		return mx(0, 1, SZ, x, y);
	}
	int mx(int idx, int s, int e, int x, int y){
		if(x>e || y<s)	return 0;
		if(x<=s && e<=y)	return seg[idx].mx;
		return max(mx(seg[idx].l, s, (s+e)/2, x, y), mx(seg[idx].r, (s+e)/2+1, e, x, y));
	}
}Seg;
 
void solve1(){
	Seg.Init(N);
	for(int i=0; i<vt.size(); i++){
		ST now = vt[i];
		ll answer = 0;
		for(int j=now.l; j<=now.r; j++){
			answer += (ll)Seg.Mx(j-now.t, j);
		}
		printf("%lld\n", answer);
	}
}
 
ll tree[MAX_N+1];
 
void upd(int x, ll y){
	while(x<=N){
		tree[x]+=y;
		x+=(x&-x);
	}
}
 
ll Sum(int x){
	ll ret = 0;
	while(x>0){
		ret+=tree[x];
		x-=(x&-x);
	}
	return ret;
}
 
void solve2(){
	Seg.Init(N);
	int T = vt[0].t;
	for(int i=1; i<=N; i++){
		upd(i, (ll)Seg.Mx(i-T, i));
	}
	for(int i=0; i<vt.size(); i++){
		ST now = vt[i];
		printf("%lld\n", Sum(now.r) - Sum(now.l-1));
	}
}
 
void solve3(){
	Seg.Init(N);
	for(int i=0; i<vt.size(); i++){
		ST now = vt[i];
		printf("%lld\n", (ll)Seg.Mx(now.l-now.t, now.l));
	}
}
 
ll ans[MAX_N+1];
 
vector<pii> v, v2;
 
void solve4(){
	Seg.Init(N);
	sort(vt.begin(), vt.end());
	int T = 0;
	for(int i=1; i<=N; i++){
		upd(i, S[i]);
		if(S[i]!=0){
			v.pb({i, S[i]});
		}
	}
	for(int i=0; i<vt.size(); i++){
		ST now = vt[i];
		while(T<now.t){
			T++;
			while(!v.empty()){
				pii n = v.back(); v.pop_back();
				if(n.first==N)	continue;
				if(S[n.first+1]<n.second){
					upd(n.first+1, (ll)(n.second-S[n.first+1]));
					S[n.first+1] = n.second;
					v2.pb({n.first+1, n.second});
				}
			}
			while(!v2.empty()){
				v.pb(v2.back()); v2.pop_back();
			}
		}
		ans[now.idx] = Sum(now.r) - Sum(now.l-1);
	}
	for(int i=1; i<=Q; i++){
		printf("%lld\n", ans[i]);
	}
}
int main(){
	scanf("%d%d", &N, &Q);
	for(int i=1; i<=N; i++){
		scanf("%d", &S[i]);
	}
	bool tf2 = true, tf3 = true;
	for(int i=1; i<=Q; i++){
		int t, l, r; scanf("%d%d%d", &t, &l, &r);
		vt.pb({t, l, r, i});
		if(t!=vt[0].t)	tf2 = false;
		if(l!=r)	tf3 = false;
	}
	if(N<=200 && Q<=200){
		solve1();
	}else if(tf2){
		solve2();
	}else if(tf3){
		solve3();
	}else{
		solve4();
	}
	return 0;
}

Compilation message

ho_t5.cpp: In function 'void solve1()':
ho_t5.cpp:63:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<ST>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   63 |  for(int i=0; i<vt.size(); i++){
      |               ~^~~~~~~~~~
ho_t5.cpp: In function 'void solve2()':
ho_t5.cpp:97:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<ST>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   97 |  for(int i=0; i<vt.size(); i++){
      |               ~^~~~~~~~~~
ho_t5.cpp: In function 'void solve3()':
ho_t5.cpp:105:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<ST>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  105 |  for(int i=0; i<vt.size(); i++){
      |               ~^~~~~~~~~~
ho_t5.cpp: In function 'void solve4()':
ho_t5.cpp:125:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<ST>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  125 |  for(int i=0; i<vt.size(); i++){
      |               ~^~~~~~~~~~
ho_t5.cpp: In function 'int main()':
ho_t5.cpp:149:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  149 |  scanf("%d%d", &N, &Q);
      |  ~~~~~^~~~~~~~~~~~~~~~
ho_t5.cpp:151:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  151 |   scanf("%d", &S[i]);
      |   ~~~~~^~~~~~~~~~~~~
ho_t5.cpp:155:21: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  155 |   int t, l, r; scanf("%d%d%d", &t, &l, &r);
      |                ~~~~~^~~~~~~~~~~~~~~~~~~~~~

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 2 ms 204 KB Output is correct
3 Correct 2 ms 332 KB Output is correct
4 Correct 2 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 2 ms 204 KB Output is correct
7 Correct 2 ms 204 KB Output is correct
8 Correct 2 ms 204 KB Output is correct
9 Correct 2 ms 204 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 2 ms 332 KB Output is correct
13 Correct 1 ms 312 KB Output is correct
14 Correct 1 ms 308 KB Output is correct
15 Correct 1 ms 316 KB Output is correct
16 Correct 2 ms 332 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 2 ms 312 KB Output is correct
24 Correct 2 ms 332 KB Output is correct
25 Correct 2 ms 204 KB Output is correct
26 Correct 2 ms 204 KB Output is correct
27 Correct 2 ms 204 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 2 ms 204 KB Output is correct
31 Correct 1 ms 204 KB Output is correct
32 Correct 1 ms 204 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 163 ms 21788 KB Output is correct
3 Correct 162 ms 21740 KB Output is correct
4 Correct 186 ms 21892 KB Output is correct
5 Correct 185 ms 21952 KB Output is correct
6 Correct 176 ms 21532 KB Output is correct
7 Correct 181 ms 21932 KB Output is correct
8 Correct 169 ms 21916 KB Output is correct
9 Correct 178 ms 22016 KB Output is correct
10 Correct 164 ms 21800 KB Output is correct
11 Correct 179 ms 22160 KB Output is correct
12 Correct 181 ms 21564 KB Output is correct
13 Correct 187 ms 21660 KB Output is correct
14 Correct 171 ms 21780 KB Output is correct
15 Correct 165 ms 21724 KB Output is correct
16 Correct 165 ms 21660 KB Output is correct

Subtask #3
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 234 ms 19496 KB Output is correct
3 Correct 197 ms 19112 KB Output is correct
4 Correct 208 ms 19692 KB Output is correct
5 Correct 181 ms 19088 KB Output is correct
6 Correct 208 ms 19228 KB Output is correct
7 Correct 191 ms 19400 KB Output is correct
8 Correct 196 ms 19332 KB Output is correct
9 Correct 198 ms 19264 KB Output is correct
10 Correct 200 ms 18956 KB Output is correct
11 Correct 205 ms 19712 KB Output is correct
12 Correct 193 ms 19260 KB Output is correct
13 Correct 190 ms 19448 KB Output is correct
14 Correct 187 ms 19184 KB Output is correct
15 Correct 195 ms 19404 KB Output is correct
16 Correct 199 ms 19200 KB Output is correct

Subtask #4
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 185 ms 20428 KB Output is correct
2 Correct 148 ms 20404 KB Output is correct
3 Correct 142 ms 20840 KB Output is correct
4 Correct 177 ms 20716 KB Output is correct
5 Correct 152 ms 20816 KB Output is correct
6 Correct 147 ms 20440 KB Output is correct
7 Correct 179 ms 20636 KB Output is correct
8 Correct 144 ms 20868 KB Output is correct
9 Correct 143 ms 20632 KB Output is correct
10 Correct 152 ms 20636 KB Output is correct
11 Correct 156 ms 20868 KB Output is correct
12 Correct 154 ms 20892 KB Output is correct
13 Correct 147 ms 20612 KB Output is correct
14 Correct 149 ms 20764 KB Output is correct

Subtask #5
80.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 2 ms 204 KB Output is correct
3 Correct 2 ms 332 KB Output is correct
4 Correct 2 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 2 ms 204 KB Output is correct
7 Correct 2 ms 204 KB Output is correct
8 Correct 2 ms 204 KB Output is correct
9 Correct 2 ms 204 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 2 ms 332 KB Output is correct
13 Correct 1 ms 312 KB Output is correct
14 Correct 1 ms 308 KB Output is correct
15 Correct 1 ms 316 KB Output is correct
16 Correct 2 ms 332 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 2 ms 312 KB Output is correct
24 Correct 2 ms 332 KB Output is correct
25 Correct 2 ms 204 KB Output is correct
26 Correct 2 ms 204 KB Output is correct
27 Correct 2 ms 204 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 2 ms 204 KB Output is correct
31 Correct 1 ms 204 KB Output is correct
32 Correct 1 ms 204 KB Output is correct
33 Correct 163 ms 21788 KB Output is correct
34 Correct 162 ms 21740 KB Output is correct
35 Correct 186 ms 21892 KB Output is correct
36 Correct 185 ms 21952 KB Output is correct
37 Correct 176 ms 21532 KB Output is correct
38 Correct 181 ms 21932 KB Output is correct
39 Correct 169 ms 21916 KB Output is correct
40 Correct 178 ms 22016 KB Output is correct
41 Correct 164 ms 21800 KB Output is correct
42 Correct 179 ms 22160 KB Output is correct
43 Correct 181 ms 21564 KB Output is correct
44 Correct 187 ms 21660 KB Output is correct
45 Correct 171 ms 21780 KB Output is correct
46 Correct 165 ms 21724 KB Output is correct
47 Correct 165 ms 21660 KB Output is correct
48 Correct 234 ms 19496 KB Output is correct
49 Correct 197 ms 19112 KB Output is correct
50 Correct 208 ms 19692 KB Output is correct
51 Correct 181 ms 19088 KB Output is correct
52 Correct 208 ms 19228 KB Output is correct
53 Correct 191 ms 19400 KB Output is correct
54 Correct 196 ms 19332 KB Output is correct
55 Correct 198 ms 19264 KB Output is correct
56 Correct 200 ms 18956 KB Output is correct
57 Correct 205 ms 19712 KB Output is correct
58 Correct 193 ms 19260 KB Output is correct
59 Correct 190 ms 19448 KB Output is correct
60 Correct 187 ms 19184 KB Output is correct
61 Correct 195 ms 19404 KB Output is correct
62 Correct 199 ms 19200 KB Output is correct
63 Correct 185 ms 20428 KB Output is correct
64 Correct 148 ms 20404 KB Output is correct
65 Correct 142 ms 20840 KB Output is correct
66 Correct 177 ms 20716 KB Output is correct
67 Correct 152 ms 20816 KB Output is correct
68 Correct 147 ms 20440 KB Output is correct
69 Correct 179 ms 20636 KB Output is correct
70 Correct 144 ms 20868 KB Output is correct
71 Correct 143 ms 20632 KB Output is correct
72 Correct 152 ms 20636 KB Output is correct
73 Correct 156 ms 20868 KB Output is correct
74 Correct 154 ms 20892 KB Output is correct
75 Correct 147 ms 20612 KB Output is correct
76 Correct 149 ms 20764 KB Output is correct
77 Correct 226 ms 23792 KB Output is correct
78 Correct 240 ms 24192 KB Output is correct
79 Correct 234 ms 23936 KB Output is correct
80 Correct 214 ms 23824 KB Output is correct
81 Correct 248 ms 23828 KB Output is correct
82 Correct 229 ms 23916 KB Output is correct
83 Correct 218 ms 23796 KB Output is correct
84 Correct 263 ms 23840 KB Output is correct
85 Correct 227 ms 23812 KB Output is correct
86 Correct 233 ms 23988 KB Output is correct
87 Correct 218 ms 24284 KB Output is correct
88 Correct 227 ms 24048 KB Output is correct
89 Correct 208 ms 23756 KB Output is correct
90 Correct 230 ms 24020 KB Output is correct
91 Correct 221 ms 23640 KB Output is correct
92 Correct 242 ms 23604 KB Output is correct
93 Correct 224 ms 23704 KB Output is correct
94 Correct 210 ms 24340 KB Output is correct
95 Correct 224 ms 24248 KB Output is correct
96 Correct 216 ms 23964 KB Output is correct
97 Correct 211 ms 23916 KB Output is correct
98 Correct 202 ms 23420 KB Output is correct
99 Correct 213 ms 23448 KB Output is correct
100 Correct 204 ms 23632 KB Output is correct
101 Correct 220 ms 23380 KB Output is correct
102 Correct 206 ms 24048 KB Output is correct