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QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #21657 | #2815. 组合数据结构问题 | lindongli2004# | AC ✓ | 20ms | 9672kb | C++14 | 1.5kb | 2022-03-07 18:52:10 | 2022-05-08 03:47:16 |
Judging History
answer
// by iodwad
#include <cstdio>
#include <iostream>
#include <queue>
#define int long long
using namespace std;
const int MAXN = 2e5;
int n;
int opt[MAXN + 5], v[MAXN + 5];
bool check_queue() {
int hd = 1, tl = 0;
static int que[MAXN + 5];
for (int i = 1; i <= n; ++i) {
if (opt[i] == 1) que[++tl] = v[i];
else {
if (hd > tl || que[hd] != v[i]) return false;
++hd;
}
}
return true;
}
bool check_stack() {
int tl = 0;
static int stack[MAXN + 5];
for (int i = 1; i <= n; ++i) {
if (opt[i] == 1) stack[++tl] = v[i];
else {
if (!tl || stack[tl] != v[i]) return false;
--tl;
}
}
return true;
}
bool check_bigh() {
static priority_queue<int> q;
for (int i = 1; i <= n; ++i) {
if (opt[i] == 1) q.push(v[i]);
else {
if (q.empty() || q.top() != v[i]) return false;
q.pop();
}
}
return true;
}
bool check_smallh() {
static priority_queue<int> q;
for (int i = 1; i <= n; ++i) {
if (opt[i] == 1) q.push(-v[i]);
else {
if (q.empty() || q.top() != -v[i]) return false;
q.pop();
}
}
return true;
}
signed main() {
ios::sync_with_stdio(false); cin.tie(0);
cin >> n;
for (int i = 1; i <= n; ++i) cin >> opt[i] >> v[i];
puts(check_queue() ? "Yes" : "No");
puts(check_stack() ? "Yes" : "No");
puts(check_bigh() ? "Yes" : "No");
puts(check_smallh() ? "Yes" : "No");
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 3ms
memory: 7704kb
input:
6 1 1 1 2 1 3 2 1 2 2 2 3
output:
Yes No No Yes
result:
ok 4 lines
Test #2:
score: 0
Accepted
time: 11ms
memory: 8484kb
input:
100000 1 49 1 59 2 49 1 98 2 59 2 98 1 95 1 34 1 64 2 95 1 18 1 44 1 7 1 78 2 34 2 64 2 18 1 37 2 44 1 89 2 7 1 2 1 21 2 78 2 37 1 90 1 75 1 50 1 33 1 70 1 32 2 89 2 2 1 49 2 21 1 46 2 90 1 3 2 75 1 50 1 37 1 24 1 88 1 78 2 50 1 22 1 73 1 95 1 100 2 33 1 28 1 62 1 25 2 70 1 90 2 32 1 31 2 49 2 46 2 ...
output:
Yes No No No
result:
ok 4 lines
Test #3:
score: 0
Accepted
time: 15ms
memory: 8948kb
input:
100000 1 78 1 47 1 9 2 9 2 47 2 78 1 67 1 58 1 6 2 6 1 60 1 5 2 5 2 60 1 100 2 100 1 76 1 28 1 81 1 40 1 5 2 5 2 40 1 39 1 13 1 82 2 82 2 13 1 19 2 19 2 39 1 47 1 25 2 25 2 47 2 81 2 28 2 76 2 58 2 67 1 13 2 13 1 39 2 39 1 72 2 72 1 88 1 84 2 84 2 88 1 100 2 100 1 2 2 2 1 91 1 20 2 20 1 25 1 37 2 37...
output:
No Yes No No
result:
ok 4 lines
Test #4:
score: 0
Accepted
time: 18ms
memory: 9672kb
input:
100000 1 99 1 79 2 79 1 90 2 90 2 99 1 43 1 40 1 61 2 40 2 43 2 61 1 98 1 70 1 65 2 65 2 70 2 98 1 64 2 64 1 64 1 12 1 57 1 54 1 69 1 19 1 67 1 99 1 42 1 25 1 88 2 12 2 19 1 50 1 45 1 60 1 55 1 14 1 49 1 55 2 14 1 87 2 25 1 14 2 14 1 37 1 20 2 20 2 37 2 42 2 45 2 49 1 82 1 39 1 80 1 76 1 7 2 7 1 19 ...
output:
No No No Yes
result:
ok 4 lines
Test #5:
score: 0
Accepted
time: 11ms
memory: 7980kb
input:
100000 1 83 2 83 1 84 1 49 1 12 1 29 2 84 2 49 1 3 2 29 2 12 2 3 1 24 1 46 1 13 2 46 2 24 2 13 1 66 1 92 2 92 2 66 1 37 1 50 1 16 1 90 2 90 1 92 2 92 1 38 2 50 1 24 1 85 1 13 2 85 2 38 1 53 1 46 1 7 1 43 1 16 1 28 2 53 1 56 1 59 2 59 2 56 2 46 2 43 1 31 1 64 1 3 2 64 1 46 2 46 2 37 2 31 1 71 2 71 1 ...
output:
No No Yes No
result:
ok 4 lines
Test #6:
score: 0
Accepted
time: 20ms
memory: 8500kb
input:
100000 1 -2147483648 2 -2147483648 1 -2147483648 1 1 1 1 2 -2147483648 2 1 1 -2147483648 2 -2147483648 1 -1 1 1 2 -1 1 1 1 -2147483648 2 -2147483648 1 1 1 -2147483648 2 -2147483648 2 1 2 1 1 -1 2 -1 1 -1 2 -1 2 1 2 1 1 -2147483648 2 -2147483648 1 1 2 1 1 -1 2 -1 1 1 2 1 1 1 2 1 1 -2147483648 2 -2147...
output:
No No No Yes
result:
ok 4 lines
Test #7:
score: 0
Accepted
time: 3ms
memory: 7964kb
input:
100000 1 1 2 1 1 1 2 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 2 1 1 1 2 1 2 1 1 1 2 1 2 1 1 1 1 1 2 1 1 1 2 1 2 1 2 1 1 1 1 1 1 1 2 1 2 1 1 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 2 1 2 1 2 1 1 1 1 1 2 1 2 1 2 1 1 1 1 1 1 1 2 1 1 1 2 1 1 1 1 1 1 1 2 1 1 1 2 1 2 1 2 1 1 1 1 1 2 1 1 1 1 1 2...
output:
No No No No
result:
ok 4 lines