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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
#201188#3482. sortablepipibob10060ms1768kbC++1.4kb2024-01-21 10:09:192024-01-21 12:05:56

answer

#include <bits/stdc++.h>
#define ll long long
#define ull unsigned long long
using namespace std;
int read()
{
    int x = 0, f = 1;
    char ch = getchar();
    while(ch < '0' || ch > '9')
    {
     	if(ch == '-')
     		f = -1;
        ch = getchar();
    }
    while(ch >= '0' && ch <= '9')
    {
     	x = (x << 3) + (x << 1) + (ch ^ 48);
        ch = getchar();
    }
    return x * f;
}
queue <int> a, b;
stack <int> s;
int q, n, x, target, vis[100050];
bool f;
int main()
{
 	#ifndef ONLINE_JUDGE
//		freopen("输入.in","r",stdin);
//		freopen("输出.out","w",stdout);
    #endif
    q = read();
    while(q--)
    {
    	while(a.size())
    		a.pop();
    	while(b.size())
    		b.pop();
    	while(s.size())
    		s.pop();
    	n = read();
    	target = 1, f = true;
    	for(int i = 1 ; i <= n ; i++)
    		x = read(), a.push(x), vis[x] = 1;
    	while(a.size() || s.size())
    	{
    		if(vis[target] == 1)
    		{
    			while(target != a.front())
    				vis[a.front()] = 2, s.push(a.front()), a.pop();
    			s.push(a.front()), a.pop(), vis[s.top()] = 3, b.push(s.top()), s.pop(), target++;
			}
			else if(vis[target] == 2)
				if(target != s.top())
				{
					f = false;
					break;
				}	
				else
					vis[s.top()] = 3, b.push(s.top()), s.pop(), target++;	
		}
		if(f)
			printf("YES\n");
		else
			printf("NO\n");
	}
 	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: 1176kb

input:

10
10
4 2 1 3 8 7 6 5 9 10
10
3 7 6 4 8 10 5 9 2 1
10
1 3 2 4 8 5 7 6 10 9
10
8 7 1 2 6 5 4 3 10 9
1...

output:

YES
NO
YES
YES
YES
YES
YES
YES
NO
NO

result:

ok 10 lines

Test #2:

score: 10
Accepted
time: 0ms
memory: 1180kb

input:

10
10
10 6 4 8 1 3 9 5 2 7
10
2 1 3 9 8 7 4 5 6 10
10
1 9 6 2 3 7 4 8 10 5
10
3 1 2 5 4 6 10 8 7 9
1...

output:

NO
YES
NO
YES
YES
YES
YES
YES
YES
YES

result:

ok 10 lines

Test #3:

score: 10
Accepted
time: 1ms
memory: 1176kb

input:

10
10
9 8 7 6 5 4 2 1 3 10
10
7 10 2 5 1 3 8 4 6 9
10
4 6 2 7 8 9 3 10 5 1
10
5 4 1 2 3 6 7 8 9 10
1...

output:

YES
NO
NO
YES
NO
NO
YES
NO
YES
YES

result:

ok 10 lines

Test #4:

score: 10
Accepted
time: 8ms
memory: 1584kb

input:

10
55985
29565 29563 29562 29352 29346 29328 29326 29325 29324 29323 29320 29319 29314 29313 29312 2...

output:

YES
NO
YES
YES
YES
YES
YES
NO
YES
NO

result:

ok 10 lines

Test #5:

score: 10
Accepted
time: 8ms
memory: 1548kb

input:

10
7763
3680 277 7608 5750 4337 7049 5804 3272 1940 4138 656 4368 3918 6305 3327 5872 4032 2233 5256...

output:

NO
YES
NO
YES
YES
NO
NO
YES
YES
YES

result:

ok 10 lines

Test #6:

score: 10
Accepted
time: 9ms
memory: 1768kb

input:

10
71974
28234 36059 56781 31385 50663 31905 45178 38510 58367 71478 55134 3951 16243 44225 5711 699...

output:

NO
YES
NO
NO
NO
YES
YES
YES
NO
NO

result:

ok 10 lines

Test #7:

score: 10
Accepted
time: 7ms
memory: 1592kb

input:

10
51542
1512 25827 42622 23126 27057 8283 46006 27813 21072 29589 10487 8260 37934 48675 27116 4708...

output:

NO
NO
YES
YES
YES
NO
NO
NO
YES
NO

result:

ok 10 lines

Test #8:

score: 10
Accepted
time: 8ms
memory: 1688kb

input:

10
61442
27627 49016 59575 37948 60082 14313 44305 48280 31222 36746 30283 42328 23889 42782 25771 4...

output:

NO
NO
NO
YES
YES
YES
NO
YES
YES
NO

result:

ok 10 lines

Test #9:

score: 10
Accepted
time: 11ms
memory: 1512kb

input:

10
17970
3118 3116 3114 3113 3108 3107 3106 2092 2091 2089 2088 2087 2085 2081 2080 2079 2077 2067 2...

output:

YES
YES
NO
NO
YES
NO
NO
YES
NO
YES

result:

ok 10 lines

Test #10:

score: 10
Accepted
time: 8ms
memory: 1700kb

input:

10
64613
49144 62298 12440 25315 54016 17872 58100 38381 41434 10557 57214 23632 29057 62471 48206 2...

output:

NO
YES
NO
NO
NO
YES
NO
NO
NO
YES

result:

ok 10 lines