#include <bits/stdc++.h>
#define F first
#define S second
#define mp make_pair
#define pb push_back
//#define ll __int128
#define ll long long
#define int long long
#define LEFT(a) ((a)<<1)
#define RIGHT(a) (LEFT(a) + 1)
#define MID(a,b) ((a+b)>>1)
#define MAX(a,b) ((a)>(b)?(a):(b))
#define MIN(a,b) ((a)<(b)?(a):(b))
#define y1 y122
/*
#pragma GCC optimize("Ofast")
#pragma GCC target("avx,avx2,fma")
#pragma GCC optimization ("unroll-loops")
/*
#pragma GCC optimize ("O3")
#pragma GCC optimize("Ofast")
#pragma GCC target("avx2,fma")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#pragma GCC target ("avx2")
#pragma GCC optimization ("unroll-loops")
#pragma comment(linker, "/STACK: 20000000005")
*/
using namespace std;
const int N = 200005;
int n, F[N];
void upd (int x){
for (; x <= n; x += x & -x)
F[x]++;
}
int dat (int x){
int ans = 0;
for (; x > 0; x &= x-1)
ans += F[x];
return ans;
}
int ans;
int a[N];
vector < int > V[N];
priority_queue < int > Q;
main()
{
//freopen ("in.in", "r", stdin);freopen ("out.out", "w", stdout);
ios_base::sync_with_stdio(0);
cin >> n;
for (int i = 1; i <= n; i++){
cin >> a[i];
a[i] = n - a[i] + 1;
}
reverse (a+1, a+n+1);
for (int i = 1; i <= n; i++)
V[a[i]].pb (i);
for (int i = 1; i <= n; i++){
for (int x : V[i])
Q.push (-x);
if (Q.size() == 0){
cout << -1 << endl;
return 0;
}
int x = -Q.top();
Q.pop();
ans += dat (n) - dat (x);
upd (x);
}
cout << ans << endl;
}
Compilation message
Main.cpp:19:1: warning: "/*" within comment [-Wcomment]
19 | /*
|
Main.cpp:55:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
55 | main()
| ^
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
6 ms |
5232 KB |
Output is correct |
2 |
Correct |
5 ms |
5248 KB |
Output is correct |
3 |
Correct |
5 ms |
5248 KB |
Output is correct |
4 |
Correct |
5 ms |
5248 KB |
Output is correct |
5 |
Correct |
5 ms |
5376 KB |
Output is correct |
6 |
Correct |
5 ms |
5248 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 |
5248 KB |
Output is correct |
14 |
Correct |
5 ms |
5248 KB |
Output is correct |
15 |
Correct |
5 ms |
5248 KB |
Output is correct |
16 |
Correct |
5 ms |
5248 KB |
Output is correct |
17 |
Correct |
5 ms |
5248 KB |
Output is correct |
18 |
Correct |
5 ms |
5248 KB |
Output is correct |
19 |
Correct |
5 ms |
5248 KB |
Output is correct |
20 |
Correct |
5 ms |
5248 KB |
Output is correct |
21 |
Correct |
5 ms |
5248 KB |
Output is correct |
22 |
Correct |
5 ms |
5248 KB |
Output is correct |
23 |
Correct |
5 ms |
5248 KB |
Output is correct |
24 |
Correct |
6 ms |
5248 KB |
Output is correct |
25 |
Correct |
6 ms |
5248 KB |
Output is correct |
26 |
Correct |
5 ms |
5248 KB |
Output is correct |
27 |
Correct |
5 ms |
5248 KB |
Output is correct |
28 |
Correct |
5 ms |
5248 KB |
Output is correct |
29 |
Correct |
5 ms |
5248 KB |
Output is correct |
30 |
Correct |
5 ms |
5248 KB |
Output is correct |
31 |
Correct |
5 ms |
5248 KB |
Output is correct |
32 |
Correct |
5 ms |
5376 KB |
Output is correct |
33 |
Correct |
5 ms |
5248 KB |
Output is correct |
34 |
Correct |
5 ms |
5248 KB |
Output is correct |
35 |
Correct |
5 ms |
5248 KB |
Output is correct |
36 |
Correct |
5 ms |
5248 KB |
Output is correct |
37 |
Correct |
5 ms |
5248 KB |
Output is correct |
38 |
Correct |
5 ms |
5248 KB |
Output is correct |
39 |
Correct |
5 ms |
5248 KB |
Output is correct |
40 |
Correct |
5 ms |
5280 KB |
Output is correct |
41 |
Correct |
4 ms |
5248 KB |
Output is correct |
42 |
Correct |
5 ms |
5280 KB |
Output is correct |
43 |
Correct |
4 ms |
5248 KB |
Output is correct |
44 |
Correct |
3 ms |
4992 KB |
Output is correct |
45 |
Correct |
4 ms |
4992 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
6 ms |
5232 KB |
Output is correct |
2 |
Correct |
5 ms |
5248 KB |
Output is correct |
3 |
Correct |
5 ms |
5248 KB |
Output is correct |
4 |
Correct |
5 ms |
5248 KB |
Output is correct |
5 |
Correct |
5 ms |
5376 KB |
Output is correct |
6 |
Correct |
5 ms |
5248 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 |
5248 KB |
Output is correct |
14 |
Correct |
5 ms |
5248 KB |
Output is correct |
15 |
Correct |
5 ms |
5248 KB |
Output is correct |
16 |
Correct |
5 ms |
5248 KB |
Output is correct |
17 |
Correct |
5 ms |
5248 KB |
Output is correct |
18 |
Correct |
5 ms |
5248 KB |
Output is correct |
19 |
Correct |
5 ms |
5248 KB |
Output is correct |
20 |
Correct |
5 ms |
5248 KB |
Output is correct |
21 |
Correct |
5 ms |
5248 KB |
Output is correct |
22 |
Correct |
5 ms |
5248 KB |
Output is correct |
23 |
Correct |
5 ms |
5248 KB |
Output is correct |
24 |
Correct |
6 ms |
5248 KB |
Output is correct |
25 |
Correct |
6 ms |
5248 KB |
Output is correct |
26 |
Correct |
5 ms |
5248 KB |
Output is correct |
27 |
Correct |
5 ms |
5248 KB |
Output is correct |
28 |
Correct |
5 ms |
5248 KB |
Output is correct |
29 |
Correct |
5 ms |
5248 KB |
Output is correct |
30 |
Correct |
5 ms |
5248 KB |
Output is correct |
31 |
Correct |
5 ms |
5248 KB |
Output is correct |
32 |
Correct |
5 ms |
5376 KB |
Output is correct |
33 |
Correct |
5 ms |
5248 KB |
Output is correct |
34 |
Correct |
5 ms |
5248 KB |
Output is correct |
35 |
Correct |
5 ms |
5248 KB |
Output is correct |
36 |
Correct |
5 ms |
5248 KB |
Output is correct |
37 |
Correct |
5 ms |
5248 KB |
Output is correct |
38 |
Correct |
5 ms |
5248 KB |
Output is correct |
39 |
Correct |
5 ms |
5248 KB |
Output is correct |
40 |
Correct |
5 ms |
5280 KB |
Output is correct |
41 |
Correct |
4 ms |
5248 KB |
Output is correct |
42 |
Correct |
5 ms |
5280 KB |
Output is correct |
43 |
Correct |
4 ms |
5248 KB |
Output is correct |
44 |
Correct |
3 ms |
4992 KB |
Output is correct |
45 |
Correct |
4 ms |
4992 KB |
Output is correct |
46 |
Correct |
110 ms |
13280 KB |
Output is correct |
47 |
Correct |
99 ms |
13160 KB |
Output is correct |
48 |
Correct |
86 ms |
13144 KB |
Output is correct |
49 |
Correct |
86 ms |
13164 KB |
Output is correct |
50 |
Correct |
87 ms |
13160 KB |
Output is correct |
51 |
Correct |
87 ms |
13228 KB |
Output is correct |
52 |
Correct |
107 ms |
14968 KB |
Output is correct |
53 |
Correct |
91 ms |
14968 KB |
Output is correct |
54 |
Correct |
80 ms |
14968 KB |
Output is correct |
55 |
Correct |
50 ms |
14968 KB |
Output is correct |
56 |
Correct |
82 ms |
14968 KB |
Output is correct |
57 |
Correct |
73 ms |
14968 KB |
Output is correct |
58 |
Correct |
117 ms |
12920 KB |
Output is correct |
59 |
Correct |
92 ms |
12920 KB |
Output is correct |
60 |
Correct |
86 ms |
12920 KB |
Output is correct |
61 |
Correct |
77 ms |
12920 KB |
Output is correct |
62 |
Correct |
56 ms |
12920 KB |
Output is correct |
63 |
Correct |
72 ms |
12920 KB |
Output is correct |
64 |
Correct |
93 ms |
13048 KB |
Output is correct |
65 |
Correct |
99 ms |
12920 KB |
Output is correct |
66 |
Correct |
86 ms |
12920 KB |
Output is correct |
67 |
Correct |
74 ms |
12920 KB |
Output is correct |
68 |
Correct |
86 ms |
12968 KB |
Output is correct |
69 |
Correct |
89 ms |
12920 KB |
Output is correct |
70 |
Correct |
96 ms |
13044 KB |
Output is correct |
71 |
Correct |
115 ms |
12916 KB |
Output is correct |
72 |
Correct |
91 ms |
12916 KB |
Output is correct |
73 |
Correct |
88 ms |
13044 KB |
Output is correct |
74 |
Correct |
66 ms |
12980 KB |
Output is correct |
75 |
Correct |
115 ms |
12916 KB |
Output is correct |
76 |
Correct |
66 ms |
12664 KB |
Output is correct |
77 |
Correct |
62 ms |
12188 KB |
Output is correct |
78 |
Correct |
44 ms |
14968 KB |
Output is correct |
79 |
Correct |
56 ms |
13048 KB |
Output is correct |
80 |
Correct |
95 ms |
13040 KB |
Output is correct |
81 |
Correct |
63 ms |
12188 KB |
Output is correct |
82 |
Correct |
42 ms |
14976 KB |
Output is correct |
83 |
Correct |
48 ms |
12920 KB |
Output is correct |
84 |
Correct |
118 ms |
13168 KB |
Output is correct |
85 |
Correct |
101 ms |
13172 KB |
Output is correct |
86 |
Correct |
100 ms |
13172 KB |
Output is correct |
87 |
Correct |
61 ms |
11128 KB |
Output is correct |
88 |
Correct |
102 ms |
13168 KB |
Output is correct |