답안 #279652

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
279652	2020-08-22T09:09:55 Z	arnold518	Exercise Deadlines (CCO20_day1problem2)	C++14	25 / 25	141 ms	14148 KB

Main

#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

const int MAXN = 2e5;

int N, A[MAXN+10];
vector<int> P[MAXN+10];

int tree[MAXN+10];
void update(int i, int k) { for(; i<=N; i+=(i&-i)) tree[i]+=k; }
int query(int i) { int ret=0; for(; i>0; i-=(i&-i)) ret+=tree[i]; return ret; }

ll ans;

int main()
{
	scanf("%d", &N);
	for(int i=1; i<=N; i++) scanf("%d", &A[i]), P[A[i]].push_back(i);

	priority_queue<int> PQ;
	for(int i=1; i<=N; i++) update(i, 1);
	for(int i=N; i>=1; i--)
	{
		for(auto it : P[i]) PQ.push(it);	
		if(PQ.empty()) return !printf("-1\n");
		int now=PQ.top(); PQ.pop();
		update(N-now+1, -1);
		ans+=query(N-now+1);
	}
	printf("%lld\n", ans);
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:21:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   21 |  scanf("%d", &N);
      |  ~~~~~^~~~~~~~~~
Main.cpp:22:31: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   22 |  for(int i=1; i<=N; i++) scanf("%d", &A[i]), P[A[i]].push_back(i);
      |                          ~~~~~^~~~~~~~~~~~~

Subtask #1
17.0 / 17.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	5248 KB	Output is correct
2	Correct	5 ms	5120 KB	Output is correct
3	Correct	6 ms	5248 KB	Output is correct
4	Correct	5 ms	5120 KB	Output is correct
5	Correct	5 ms	5120 KB	Output is correct
6	Correct	5 ms	5120 KB	Output is correct
7	Correct	5 ms	5248 KB	Output is correct
8	Correct	5 ms	5248 KB	Output is correct
9	Correct	5 ms	5248 KB	Output is correct
10	Correct	5 ms	5248 KB	Output is correct
11	Correct	5 ms	5248 KB	Output is correct
12	Correct	5 ms	5248 KB	Output is correct
13	Correct	5 ms	5120 KB	Output is correct
14	Correct	5 ms	5120 KB	Output is correct
15	Correct	5 ms	5120 KB	Output is correct
16	Correct	5 ms	5120 KB	Output is correct
17	Correct	5 ms	5120 KB	Output is correct
18	Correct	5 ms	5120 KB	Output is correct
19	Correct	5 ms	5120 KB	Output is correct
20	Correct	5 ms	5120 KB	Output is correct
21	Correct	5 ms	5120 KB	Output is correct
22	Correct	5 ms	5120 KB	Output is correct
23	Correct	5 ms	5120 KB	Output is correct
24	Correct	5 ms	5120 KB	Output is correct
25	Correct	5 ms	5120 KB	Output is correct
26	Correct	5 ms	5120 KB	Output is correct
27	Correct	5 ms	5120 KB	Output is correct
28	Correct	5 ms	5120 KB	Output is correct
29	Correct	5 ms	5120 KB	Output is correct
30	Correct	5 ms	5172 KB	Output is correct
31	Correct	5 ms	5120 KB	Output is correct
32	Correct	5 ms	5120 KB	Output is correct
33	Correct	4 ms	5248 KB	Output is correct
34	Correct	4 ms	5120 KB	Output is correct
35	Correct	5 ms	5120 KB	Output is correct
36	Correct	4 ms	5120 KB	Output is correct
37	Correct	4 ms	5248 KB	Output is correct
38	Correct	5 ms	5120 KB	Output is correct
39	Correct	5 ms	5120 KB	Output is correct
40	Correct	2 ms	5120 KB	Output is correct
41	Correct	4 ms	5120 KB	Output is correct
42	Correct	5 ms	5120 KB	Output is correct
43	Correct	4 ms	5120 KB	Output is correct
44	Correct	3 ms	4992 KB	Output is correct
45	Correct	3 ms	4992 KB	Output is correct

Subtask #2
8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	5248 KB	Output is correct
2	Correct	5 ms	5120 KB	Output is correct
3	Correct	6 ms	5248 KB	Output is correct
4	Correct	5 ms	5120 KB	Output is correct
5	Correct	5 ms	5120 KB	Output is correct
6	Correct	5 ms	5120 KB	Output is correct
7	Correct	5 ms	5248 KB	Output is correct
8	Correct	5 ms	5248 KB	Output is correct
9	Correct	5 ms	5248 KB	Output is correct
10	Correct	5 ms	5248 KB	Output is correct
11	Correct	5 ms	5248 KB	Output is correct
12	Correct	5 ms	5248 KB	Output is correct
13	Correct	5 ms	5120 KB	Output is correct
14	Correct	5 ms	5120 KB	Output is correct
15	Correct	5 ms	5120 KB	Output is correct
16	Correct	5 ms	5120 KB	Output is correct
17	Correct	5 ms	5120 KB	Output is correct
18	Correct	5 ms	5120 KB	Output is correct
19	Correct	5 ms	5120 KB	Output is correct
20	Correct	5 ms	5120 KB	Output is correct
21	Correct	5 ms	5120 KB	Output is correct
22	Correct	5 ms	5120 KB	Output is correct
23	Correct	5 ms	5120 KB	Output is correct
24	Correct	5 ms	5120 KB	Output is correct
25	Correct	5 ms	5120 KB	Output is correct
26	Correct	5 ms	5120 KB	Output is correct
27	Correct	5 ms	5120 KB	Output is correct
28	Correct	5 ms	5120 KB	Output is correct
29	Correct	5 ms	5120 KB	Output is correct
30	Correct	5 ms	5172 KB	Output is correct
31	Correct	5 ms	5120 KB	Output is correct
32	Correct	5 ms	5120 KB	Output is correct
33	Correct	4 ms	5248 KB	Output is correct
34	Correct	4 ms	5120 KB	Output is correct
35	Correct	5 ms	5120 KB	Output is correct
36	Correct	4 ms	5120 KB	Output is correct
37	Correct	4 ms	5248 KB	Output is correct
38	Correct	5 ms	5120 KB	Output is correct
39	Correct	5 ms	5120 KB	Output is correct
40	Correct	2 ms	5120 KB	Output is correct
41	Correct	4 ms	5120 KB	Output is correct
42	Correct	5 ms	5120 KB	Output is correct
43	Correct	4 ms	5120 KB	Output is correct
44	Correct	3 ms	4992 KB	Output is correct
45	Correct	3 ms	4992 KB	Output is correct
46	Correct	126 ms	11804 KB	Output is correct
47	Correct	132 ms	11768 KB	Output is correct
48	Correct	105 ms	11768 KB	Output is correct
49	Correct	107 ms	11768 KB	Output is correct
50	Correct	121 ms	11764 KB	Output is correct
51	Correct	108 ms	11764 KB	Output is correct
52	Correct	116 ms	14072 KB	Output is correct
53	Correct	112 ms	14076 KB	Output is correct
54	Correct	97 ms	14040 KB	Output is correct
55	Correct	69 ms	14104 KB	Output is correct
56	Correct	88 ms	14148 KB	Output is correct
57	Correct	98 ms	14072 KB	Output is correct
58	Correct	123 ms	11948 KB	Output is correct
59	Correct	128 ms	11900 KB	Output is correct
60	Correct	111 ms	11880 KB	Output is correct
61	Correct	101 ms	11984 KB	Output is correct
62	Correct	71 ms	11896 KB	Output is correct
63	Correct	94 ms	11896 KB	Output is correct
64	Correct	111 ms	11772 KB	Output is correct
65	Correct	119 ms	11768 KB	Output is correct
66	Correct	109 ms	11820 KB	Output is correct
67	Correct	116 ms	11768 KB	Output is correct
68	Correct	104 ms	11768 KB	Output is correct
69	Correct	110 ms	11768 KB	Output is correct
70	Correct	117 ms	11720 KB	Output is correct
71	Correct	118 ms	11696 KB	Output is correct
72	Correct	111 ms	11832 KB	Output is correct
73	Correct	115 ms	11768 KB	Output is correct
74	Correct	83 ms	11824 KB	Output is correct
75	Correct	108 ms	11780 KB	Output is correct
76	Correct	94 ms	11384 KB	Output is correct
77	Correct	72 ms	10052 KB	Output is correct
78	Correct	69 ms	14072 KB	Output is correct
79	Correct	67 ms	11900 KB	Output is correct
80	Correct	124 ms	11512 KB	Output is correct
81	Correct	84 ms	10112 KB	Output is correct
82	Correct	60 ms	14072 KB	Output is correct
83	Correct	67 ms	11976 KB	Output is correct
84	Correct	115 ms	11976 KB	Output is correct
85	Correct	134 ms	11836 KB	Output is correct
86	Correct	141 ms	11896 KB	Output is correct
87	Correct	84 ms	11640 KB	Output is correct
88	Correct	125 ms	11980 KB	Output is correct

답안 #279652

Compilation message

Subtask #1 17.0 / 17.0

Subtask #2 8.0 / 8.0

Subtask #1
17.0 / 17.0

Subtask #2
8.0 / 8.0