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답안 #273471

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
273471 2020-08-19T05:31:30 Z 송준혁(#5100) Exercise Deadlines (CCO20_day1problem2) C++17
25 / 25
 106 ms 4972 KB 
#include <bits/stdc++.h>
#define fi first
#define se second
using namespace std;
typedef long long LL;
typedef pair<int,int> pii;

int N;
LL ans;
pii A[202020];
int T[202020];
priority_queue<int> PQ;

void upd(int k){for(;k<=N;k+=k&-k)T[k]++;}
int read(int k){int r=0; for(;k;k^=k&-k)r+=T[k]; return r;}

int main(){
	scanf("%d", &N);
	for (int i=1; i<=N; i++) scanf("%d", &A[i].fi), A[i].se=i;
	sort(A+1, A+N+1);
	int t=N;
	for (int i=N; i>0; i--){
		while (t>0 && A[t].fi>=i) PQ.push(A[t].se), t--;
		if (PQ.empty()){
			puts("-1");
			return 0;
		}
		int x = PQ.top(); PQ.pop();
		ans += read(x), upd(x);
	}
	printf("%lld\n", ans);
	return 0;
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:18:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   18 |  scanf("%d", &N);
      |  ~~~~~^~~~~~~~~~
Main.cpp:19:32: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   19 |  for (int i=1; i<=N; i++) scanf("%d", &A[i].fi), A[i].se=i;
      |                           ~~~~~^~~~~~~~~~~~~~~~

Subtask #1
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 3 ms 424 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Correct 2 ms 412 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 2 ms 384 KB Output is correct
11 Correct 2 ms 384 KB Output is correct
12 Correct 2 ms 384 KB Output is correct
13 Correct 3 ms 384 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 2 ms 384 KB Output is correct
16 Correct 2 ms 384 KB Output is correct
17 Correct 3 ms 384 KB Output is correct
18 Correct 2 ms 384 KB Output is correct
19 Correct 3 ms 384 KB Output is correct
20 Correct 2 ms 384 KB Output is correct
21 Correct 2 ms 384 KB Output is correct
22 Correct 2 ms 512 KB Output is correct
23 Correct 2 ms 384 KB Output is correct
24 Correct 2 ms 384 KB Output is correct
25 Correct 3 ms 416 KB Output is correct
26 Correct 2 ms 384 KB Output is correct
27 Correct 2 ms 384 KB Output is correct
28 Correct 2 ms 416 KB Output is correct
29 Correct 3 ms 384 KB Output is correct
30 Correct 2 ms 384 KB Output is correct
31 Correct 3 ms 384 KB Output is correct
32 Correct 2 ms 512 KB Output is correct
33 Correct 2 ms 384 KB Output is correct
34 Correct 2 ms 384 KB Output is correct
35 Correct 2 ms 384 KB Output is correct
36 Correct 2 ms 512 KB Output is correct
37 Correct 2 ms 384 KB Output is correct
38 Correct 2 ms 384 KB Output is correct
39 Correct 3 ms 384 KB Output is correct
40 Correct 2 ms 384 KB Output is correct
41 Correct 2 ms 512 KB Output is correct
42 Correct 2 ms 384 KB Output is correct
43 Correct 2 ms 416 KB Output is correct
44 Correct 0 ms 384 KB Output is correct
45 Correct 1 ms 384 KB Output is correct

Subtask #2
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 3 ms 424 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Correct 2 ms 412 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 2 ms 384 KB Output is correct
11 Correct 2 ms 384 KB Output is correct
12 Correct 2 ms 384 KB Output is correct
13 Correct 3 ms 384 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 2 ms 384 KB Output is correct
16 Correct 2 ms 384 KB Output is correct
17 Correct 3 ms 384 KB Output is correct
18 Correct 2 ms 384 KB Output is correct
19 Correct 3 ms 384 KB Output is correct
20 Correct 2 ms 384 KB Output is correct
21 Correct 2 ms 384 KB Output is correct
22 Correct 2 ms 512 KB Output is correct
23 Correct 2 ms 384 KB Output is correct
24 Correct 2 ms 384 KB Output is correct
25 Correct 3 ms 416 KB Output is correct
26 Correct 2 ms 384 KB Output is correct
27 Correct 2 ms 384 KB Output is correct
28 Correct 2 ms 416 KB Output is correct
29 Correct 3 ms 384 KB Output is correct
30 Correct 2 ms 384 KB Output is correct
31 Correct 3 ms 384 KB Output is correct
32 Correct 2 ms 512 KB Output is correct
33 Correct 2 ms 384 KB Output is correct
34 Correct 2 ms 384 KB Output is correct
35 Correct 2 ms 384 KB Output is correct
36 Correct 2 ms 512 KB Output is correct
37 Correct 2 ms 384 KB Output is correct
38 Correct 2 ms 384 KB Output is correct
39 Correct 3 ms 384 KB Output is correct
40 Correct 2 ms 384 KB Output is correct
41 Correct 2 ms 512 KB Output is correct
42 Correct 2 ms 384 KB Output is correct
43 Correct 2 ms 416 KB Output is correct
44 Correct 0 ms 384 KB Output is correct
45 Correct 1 ms 384 KB Output is correct
46 Correct 88 ms 4464 KB Output is correct
47 Correct 87 ms 4464 KB Output is correct
48 Correct 77 ms 4464 KB Output is correct
49 Correct 79 ms 4464 KB Output is correct
50 Correct 101 ms 4460 KB Output is correct
51 Correct 81 ms 4492 KB Output is correct
52 Correct 63 ms 3960 KB Output is correct
53 Correct 63 ms 3976 KB Output is correct
54 Correct 54 ms 3960 KB Output is correct
55 Correct 44 ms 4088 KB Output is correct
56 Correct 68 ms 3964 KB Output is correct
57 Correct 57 ms 3960 KB Output is correct
58 Correct 80 ms 4088 KB Output is correct
59 Correct 79 ms 3960 KB Output is correct
60 Correct 70 ms 3936 KB Output is correct
61 Correct 60 ms 3960 KB Output is correct
62 Correct 52 ms 3960 KB Output is correct
63 Correct 62 ms 3960 KB Output is correct
64 Correct 75 ms 3960 KB Output is correct
65 Correct 87 ms 3960 KB Output is correct
66 Correct 83 ms 4088 KB Output is correct
67 Correct 75 ms 3960 KB Output is correct
68 Correct 106 ms 3932 KB Output is correct
69 Correct 79 ms 4088 KB Output is correct
70 Correct 102 ms 4232 KB Output is correct
71 Correct 84 ms 4216 KB Output is correct
72 Correct 82 ms 4216 KB Output is correct
73 Correct 101 ms 4204 KB Output is correct
74 Correct 64 ms 4216 KB Output is correct
75 Correct 83 ms 4244 KB Output is correct
76 Correct 72 ms 4216 KB Output is correct
77 Correct 82 ms 4972 KB Output is correct
78 Correct 48 ms 4004 KB Output is correct
79 Correct 53 ms 3960 KB Output is correct
80 Correct 75 ms 4212 KB Output is correct
81 Correct 105 ms 4948 KB Output is correct
82 Correct 47 ms 3960 KB Output is correct
83 Correct 51 ms 3960 KB Output is correct
84 Correct 86 ms 4340 KB Output is correct
85 Correct 87 ms 4340 KB Output is correct
86 Correct 87 ms 4340 KB Output is correct
87 Correct 56 ms 3192 KB Output is correct
88 Correct 87 ms 4268 KB Output is correct