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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#200288#3470. 寻找好点BYR_KKK1004604ms87164kbC++2.2kb2023-12-31 10:02:142023-12-31 12:22:16

answer

#include<bits/stdc++.h>
#define int long long
#define ok std::printf("OrzFinderHT\n")
#define pr std::printf

int read(){
	int x=0,f=1;
	char c=getchar();
	while(c<'0'||c>'9'){
		if(c=='-') f=-1;
		c=getchar();
	}
	while(c>='0'&&c<='9') x=x*10+(int)(c-'0'),c=getchar();
	return x*f;
}

const int maxn=1e6+10;

int a[maxn];

struct tree{
	int l,r,ls,rs,mx;
}s[maxn<<1];

int cnt=0;

inline void push_up(int p){
	s[p].mx=std::max(s[s[p].ls].mx,s[s[p].rs].mx);
	return ;
}

inline int build(int l,int r){
	int p=++cnt;
	s[p].l=l,s[p].r=r;
	if(l==r){
		s[p].mx=a[l];
		return p;
	}
	int mid=(l+r)>>1;
	s[p].ls=build(l,mid);
	s[p].rs=build(mid+1,r);
	push_up(p);
	return p;
}

inline void update(int p,int k,int x){
	int l=s[p].l,r=s[p].r;
	if(l==r&&l==k){
		s[p].mx=x;
		return ;
	}
	int mid=(l+r)>>1;
	if(k<=mid) update(s[p].ls,k,x);
	else update(s[p].rs,k,x);
	push_up(p);
	return ;
}

inline int query(int p,int L,int R,int x){
	int l=s[p].l,r=s[p].r;
	if(r<L||l>R) return -1;
//;	ok;
	if(s[p].mx<=x) return -1;
//	ok;
	if(l==r) {
		if(s[p].mx>x) return l;
		return -1;
	}
	int ls=s[p].ls,rs=s[p].rs;
	int mid=(l+r)>>1;
//	ok;
	if(l>=L&&r<=R){
		if(s[ls].mx>x){
			return query(ls,L,R,x);
		}
		if(s[rs].mx>x){
			return query(rs,L,R,x);
		}
		return -1;
	}
	//包含 
	if(l<=L&&r>=R){
		int als=query(ls,L,R,x);//,ars=query(rs,L,R,x);
//		pr("%lld %lld %lld %lld\n",l,r,als,ars);
		if(als!=-1) return als;
		int ars=query(rs,L,R,x);
		return ars;
	}
	if(l<L&&R>=r){
		int als=query(ls,L,R,x);//,ars=query(rs,L,R,x);
		if(als!=-1) return als;
		int ars=query(rs,L,R,x);
		return ars;
	}
	int als=query(ls,L,R,x);//,ars=query(rs,L,R,x);
	if(als!=-1) return als;
	int ars=query(rs,L,R,x);
	return ars;
}

signed main(){
//	freopen("t1.txt","r",stdin);
//	freopen("t1ans.txt","w",stdout);
	std::ios::sync_with_stdio(false);
	std::cin.tie(0);
	std::cout.tie(0);
	int n=read();
	for(int i=1;i<=n;i++) a[i]=read();
	build(1,n);
	int q=read();
	
	while(q--){
		int l=read(),r=read(),k=read();
		int loc=query(1,l,r,k);
		std::printf("%lld\n",loc);
		if(loc==-1) continue;
		update(1,loc,k);
	}
	return 0;
}

详细

小提示:点击横条可展开更详细的信息

Test #1:

score: 10
Accepted
time: 0ms
memory: 1260kb

input:

300
246 733 1322 2465 2613 3452 4124 4346 4368 4871 5995 6637 7297 7634 7507 8383 8979 9620 10757 11...

output:

148
178
225
190
138
179
69
147
83
200
99
192
19
79
200
100
120
148
-1
282
57
134
141
142
198
151
190...

result:

ok 300 lines

Test #2:

score: 10
Accepted
time: 0ms
memory: 1264kb

input:

300
493 1451 2459 2622 3230 3690 3979 4574 5081 5631 6458 6215 7727 6712 7752 7904 10559 10395 9721 ...

output:

147
233
156
89
194
233
11
245
222
120
188
71
109
169
137
82
122
134
105
160
155
50
187
240
-1
94
134...

result:

ok 300 lines

Test #3:

score: 10
Accepted
time: 0ms
memory: 1664kb

input:

5000
9 20 45 52 49 57 58 87 110 114 104 119 130 126 176 144 198 211 229 234 199 251 215 260 240 293 ...

output:

-1
4025
-1
2859
799
3670
2568
1368
2950
1598
2548
956
3217
3063
-1
-1
2744
3604
1392
515
1040
-1
210...

result:

ok 5000 lines

Test #4:

score: 10
Accepted
time: 3ms
memory: 1664kb

input:

5000
9 11 22 36 56 62 67 80 96 98 117 118 134 139 144 158 174 182 190 203 227 232 247 244 259 268 29...

output:

-1
-1
1724
-1
2593
-1
939
-1
-1
-1
1503
-1
2163
2578
1527
2112
-1
2115
3271
3945
-1
3149
3651
1324
3...

result:

ok 5000 lines

Test #5:

score: 10
Accepted
time: 3ms
memory: 1660kb

input:

5000
10 12 39 37 58 58 82 116 119 95 138 117 144 183 174 217 197 205 209 243 211 271 286 257 236 298...

output:

-1
-1
1574
1937
1691
-1
4216
-1
1708
955
-1
3433
-1
2531
3493
1962
2115
3046
-1
799
-1
-1
3216
2821
...

result:

ok 5000 lines

Test #6:

score: 10
Accepted
time: 3ms
memory: 1660kb

input:

5000
17 24 41 50 66 71 80 86 102 106 123 133 150 157 167 180 182 191 204 218 228 243 251 268 279 293...

output:

2066
-1
2658
2886
916
958
-1
4190
-1
-1
2858
-1
3611
2990
1167
4519
1151
-1
3881
4966
943
3101
-1
-1...

result:

ok 5000 lines

Test #7:

score: 10
Accepted
time: 1335ms
memory: 87164kb

input:

1000000
5 7 9 15 24 28 36 38 45 48 51 56 54 61 70 71 78 79 85 91 98 107 112 117 126 132 133 142 154 ...

output:

523080
585083
682099
488339
477822
330809
337824
574145
627108
434148
372632
532279
774997
474340
51...

result:

ok 1000000 lines

Test #8:

score: 10
Accepted
time: 1423ms
memory: 87164kb

input:

1000000
4 7 12 23 28 36 47 48 65 70 73 82 86 87 97 101 111 118 122 120 124 126 137 149 151 148 158 1...

output:

436413
406778
507867
967432
462532
574431
725838
409960
532986
556972
615602
229720
269321
154974
26...

result:

ok 1000000 lines

Test #9:

score: 10
Accepted
time: 860ms
memory: 87164kb

input:

1000000
8 8 17 27 28 36 53 51 60 69 72 76 83 81 91 87 97 103 115 118 118 132 140 143 152 154 160 156...

output:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
3...

result:

ok 1000000 lines

Test #10:

score: 10
Accepted
time: 977ms
memory: 87164kb

input:

1000000
8 9 16 19 23 34 38 39 47 54 58 64 71 83 85 94 98 109 109 112 118 120 132 144 146 145 139 153...

output:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
3...

result:

ok 1000000 lines

Extra Test:

score: 0
Extra Test Passed