oj.uz

Submission #217559

# Submission time Handle Problem Language Result Execution time Memory
217559 2020-03-30T09:11:57 Z 2fat2code Arranging Shoes (IOI19_shoes) C++17
100 / 100
 255 ms 276476 KB 
#include "shoes.h"
#include <bits/stdc++.h>
#define ll long long
#define ld long double
#define all(a) (a).begin(), (a).end()
//#pragma GCC optimize("O3")
//#pragma GCC optimize("Ofast")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#define sz() size()
#define fr first
#define sc second
#define pi pair<int,int>
#define pii pair<pair<int,int>,int>
#define mp make_pair
//#define int long long
#define rc(s) return cout<<s,0
#define rcc(s) cout<<s,exit(0)
using namespace std;

const int mod=1e9+7;
const int modp=1999999973;
const int modulo=998244353;

long long ans,aib[200005],n;
vector<long long>arr(200005);
queue<long long>pos[200005];
queue<long long>neg[200005];

void update(long long pos,long long val){
    while(pos<=n){
        aib[pos]+=val;
        pos+=(pos&-pos);
    }
}

long long sum(long long pos){
    long long rs=0;
    while(pos>=1){
        rs+=aib[pos];
        pos-=(pos&-pos);
    }
    return rs;
}

long long count_swaps(std::vector<int> s) {
    ios_base::sync_with_stdio(false);cin.tie(0);cerr.tie(0);cout.tie(0);
    srand(chrono::steady_clock::now().time_since_epoch().count());
    n=s.size();
    long long cnt=-1;
    for(int i=0;i<s.size();i++){
        if(s[i]<0){
            if(pos[-s[i]].size()==0){
                cnt+=2;
                arr[i+1]=cnt;
                neg[-s[i]].push(cnt+1);
            }
            else{
                arr[i+1]=pos[-s[i]].front();
                pos[-s[i]].pop();
            }
        }
        else{
            if(neg[s[i]].size()==0){
                cnt+=2;
                arr[i+1]=cnt+1;
                pos[s[i]].push(cnt);
            }
            else{
                arr[i+1]=neg[s[i]].front();
                neg[s[i]].pop();
            }
        }
    }
    for(int i=n;i>=1;i--){
        ans+=sum(arr[i]-1LL);
        update(arr[i],1LL);
    }
    return ans;
}

Compilation message

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:50:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0;i<s.size();i++){
                 ~^~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 185 ms 271224 KB Output is correct
2 Correct 186 ms 271224 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 185 ms 271224 KB Output is correct
2 Correct 186 ms 271224 KB Output is correct
3 Correct 183 ms 271228 KB Output is correct
4 Correct 186 ms 271224 KB Output is correct
5 Correct 182 ms 271224 KB Output is correct
6 Correct 189 ms 271224 KB Output is correct
7 Correct 186 ms 271272 KB Output is correct
8 Correct 181 ms 271224 KB Output is correct
9 Correct 183 ms 271096 KB Output is correct
10 Correct 187 ms 271224 KB Output is correct
11 Correct 182 ms 271228 KB Output is correct
12 Correct 185 ms 271216 KB Output is correct
13 Correct 187 ms 271224 KB Output is correct
14 Correct 182 ms 271224 KB Output is correct
15 Correct 189 ms 271096 KB Output is correct
16 Correct 182 ms 271224 KB Output is correct
17 Correct 191 ms 271280 KB Output is correct
18 Correct 183 ms 271224 KB Output is correct
19 Correct 181 ms 271224 KB Output is correct
20 Correct 187 ms 271224 KB Output is correct
21 Correct 184 ms 271224 KB Output is correct
22 Correct 186 ms 271224 KB Output is correct
23 Correct 181 ms 271224 KB Output is correct
24 Correct 182 ms 271224 KB Output is correct
25 Correct 183 ms 271224 KB Output is correct
26 Correct 184 ms 271224 KB Output is correct
27 Correct 195 ms 271352 KB Output is correct
28 Correct 187 ms 271224 KB Output is correct
29 Correct 187 ms 271228 KB Output is correct
30 Correct 189 ms 271352 KB Output is correct
31 Correct 181 ms 271224 KB Output is correct
32 Correct 182 ms 271224 KB Output is correct
33 Correct 186 ms 271176 KB Output is correct
34 Correct 183 ms 271224 KB Output is correct
35 Correct 187 ms 271224 KB Output is correct
36 Correct 185 ms 271224 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 185 ms 271224 KB Output is correct
2 Correct 186 ms 271224 KB Output is correct
3 Correct 192 ms 271352 KB Output is correct
4 Correct 190 ms 271224 KB Output is correct
5 Correct 183 ms 271224 KB Output is correct
6 Correct 186 ms 271224 KB Output is correct
7 Correct 187 ms 271224 KB Output is correct
8 Correct 184 ms 271224 KB Output is correct
9 Correct 183 ms 271224 KB Output is correct
10 Correct 185 ms 271224 KB Output is correct
11 Correct 183 ms 271180 KB Output is correct
12 Correct 184 ms 271228 KB Output is correct
13 Correct 191 ms 271352 KB Output is correct
14 Correct 184 ms 271224 KB Output is correct
15 Correct 188 ms 271208 KB Output is correct
16 Correct 191 ms 271224 KB Output is correct
17 Correct 188 ms 271224 KB Output is correct
18 Correct 185 ms 271224 KB Output is correct
19 Correct 188 ms 271224 KB Output is correct
20 Correct 195 ms 271608 KB Output is correct
21 Correct 201 ms 271608 KB Output is correct
22 Correct 222 ms 274552 KB Output is correct
23 Correct 232 ms 274552 KB Output is correct
24 Correct 219 ms 274424 KB Output is correct
25 Correct 232 ms 275208 KB Output is correct
26 Correct 226 ms 274552 KB Output is correct
27 Correct 226 ms 274424 KB Output is correct
28 Correct 232 ms 275208 KB Output is correct
29 Correct 234 ms 275320 KB Output is correct
30 Correct 231 ms 275192 KB Output is correct
31 Correct 221 ms 274424 KB Output is correct
32 Correct 223 ms 275320 KB Output is correct
33 Correct 229 ms 275196 KB Output is correct
34 Correct 229 ms 275192 KB Output is correct
35 Correct 183 ms 271224 KB Output is correct
36 Correct 183 ms 271224 KB Output is correct
37 Correct 226 ms 275208 KB Output is correct
38 Correct 238 ms 275448 KB Output is correct
39 Correct 223 ms 275320 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 183 ms 271224 KB Output is correct
2 Correct 187 ms 271352 KB Output is correct
3 Correct 185 ms 271224 KB Output is correct
4 Correct 184 ms 271228 KB Output is correct
5 Correct 241 ms 274680 KB Output is correct
6 Correct 241 ms 274424 KB Output is correct
7 Correct 240 ms 274424 KB Output is correct
8 Correct 230 ms 275320 KB Output is correct
9 Correct 235 ms 274424 KB Output is correct
10 Correct 236 ms 274424 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 185 ms 271224 KB Output is correct
2 Correct 186 ms 271224 KB Output is correct
3 Correct 183 ms 271228 KB Output is correct
4 Correct 186 ms 271224 KB Output is correct
5 Correct 182 ms 271224 KB Output is correct
6 Correct 189 ms 271224 KB Output is correct
7 Correct 186 ms 271272 KB Output is correct
8 Correct 181 ms 271224 KB Output is correct
9 Correct 183 ms 271096 KB Output is correct
10 Correct 187 ms 271224 KB Output is correct
11 Correct 182 ms 271228 KB Output is correct
12 Correct 185 ms 271216 KB Output is correct
13 Correct 187 ms 271224 KB Output is correct
14 Correct 182 ms 271224 KB Output is correct
15 Correct 189 ms 271096 KB Output is correct
16 Correct 182 ms 271224 KB Output is correct
17 Correct 191 ms 271280 KB Output is correct
18 Correct 183 ms 271224 KB Output is correct
19 Correct 181 ms 271224 KB Output is correct
20 Correct 187 ms 271224 KB Output is correct
21 Correct 184 ms 271224 KB Output is correct
22 Correct 186 ms 271224 KB Output is correct
23 Correct 181 ms 271224 KB Output is correct
24 Correct 182 ms 271224 KB Output is correct
25 Correct 183 ms 271224 KB Output is correct
26 Correct 184 ms 271224 KB Output is correct
27 Correct 195 ms 271352 KB Output is correct
28 Correct 187 ms 271224 KB Output is correct
29 Correct 187 ms 271228 KB Output is correct
30 Correct 189 ms 271352 KB Output is correct
31 Correct 181 ms 271224 KB Output is correct
32 Correct 182 ms 271224 KB Output is correct
33 Correct 186 ms 271176 KB Output is correct
34 Correct 183 ms 271224 KB Output is correct
35 Correct 187 ms 271224 KB Output is correct
36 Correct 185 ms 271224 KB Output is correct
37 Correct 194 ms 271360 KB Output is correct
38 Correct 184 ms 271224 KB Output is correct
39 Correct 186 ms 271224 KB Output is correct
40 Correct 187 ms 271224 KB Output is correct
41 Correct 188 ms 271224 KB Output is correct
42 Correct 198 ms 271224 KB Output is correct
43 Correct 184 ms 271228 KB Output is correct
44 Correct 193 ms 271352 KB Output is correct
45 Correct 187 ms 271224 KB Output is correct
46 Correct 185 ms 271224 KB Output is correct
47 Correct 191 ms 271224 KB Output is correct
48 Correct 185 ms 271224 KB Output is correct
49 Correct 186 ms 271224 KB Output is correct
50 Correct 185 ms 271224 KB Output is correct
51 Correct 187 ms 271224 KB Output is correct
52 Correct 182 ms 271224 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 185 ms 271224 KB Output is correct
2 Correct 186 ms 271224 KB Output is correct
3 Correct 183 ms 271228 KB Output is correct
4 Correct 186 ms 271224 KB Output is correct
5 Correct 182 ms 271224 KB Output is correct
6 Correct 189 ms 271224 KB Output is correct
7 Correct 186 ms 271272 KB Output is correct
8 Correct 181 ms 271224 KB Output is correct
9 Correct 183 ms 271096 KB Output is correct
10 Correct 187 ms 271224 KB Output is correct
11 Correct 182 ms 271228 KB Output is correct
12 Correct 185 ms 271216 KB Output is correct
13 Correct 187 ms 271224 KB Output is correct
14 Correct 182 ms 271224 KB Output is correct
15 Correct 189 ms 271096 KB Output is correct
16 Correct 182 ms 271224 KB Output is correct
17 Correct 191 ms 271280 KB Output is correct
18 Correct 183 ms 271224 KB Output is correct
19 Correct 181 ms 271224 KB Output is correct
20 Correct 187 ms 271224 KB Output is correct
21 Correct 184 ms 271224 KB Output is correct
22 Correct 186 ms 271224 KB Output is correct
23 Correct 181 ms 271224 KB Output is correct
24 Correct 182 ms 271224 KB Output is correct
25 Correct 183 ms 271224 KB Output is correct
26 Correct 184 ms 271224 KB Output is correct
27 Correct 195 ms 271352 KB Output is correct
28 Correct 187 ms 271224 KB Output is correct
29 Correct 187 ms 271228 KB Output is correct
30 Correct 189 ms 271352 KB Output is correct
31 Correct 181 ms 271224 KB Output is correct
32 Correct 182 ms 271224 KB Output is correct
33 Correct 186 ms 271176 KB Output is correct
34 Correct 183 ms 271224 KB Output is correct
35 Correct 187 ms 271224 KB Output is correct
36 Correct 185 ms 271224 KB Output is correct
37 Correct 192 ms 271352 KB Output is correct
38 Correct 190 ms 271224 KB Output is correct
39 Correct 183 ms 271224 KB Output is correct
40 Correct 186 ms 271224 KB Output is correct
41 Correct 187 ms 271224 KB Output is correct
42 Correct 184 ms 271224 KB Output is correct
43 Correct 183 ms 271224 KB Output is correct
44 Correct 185 ms 271224 KB Output is correct
45 Correct 183 ms 271180 KB Output is correct
46 Correct 184 ms 271228 KB Output is correct
47 Correct 191 ms 271352 KB Output is correct
48 Correct 184 ms 271224 KB Output is correct
49 Correct 188 ms 271208 KB Output is correct
50 Correct 191 ms 271224 KB Output is correct
51 Correct 188 ms 271224 KB Output is correct
52 Correct 185 ms 271224 KB Output is correct
53 Correct 188 ms 271224 KB Output is correct
54 Correct 195 ms 271608 KB Output is correct
55 Correct 201 ms 271608 KB Output is correct
56 Correct 222 ms 274552 KB Output is correct
57 Correct 232 ms 274552 KB Output is correct
58 Correct 219 ms 274424 KB Output is correct
59 Correct 232 ms 275208 KB Output is correct
60 Correct 226 ms 274552 KB Output is correct
61 Correct 226 ms 274424 KB Output is correct
62 Correct 232 ms 275208 KB Output is correct
63 Correct 234 ms 275320 KB Output is correct
64 Correct 231 ms 275192 KB Output is correct
65 Correct 221 ms 274424 KB Output is correct
66 Correct 223 ms 275320 KB Output is correct
67 Correct 229 ms 275196 KB Output is correct
68 Correct 229 ms 275192 KB Output is correct
69 Correct 183 ms 271224 KB Output is correct
70 Correct 183 ms 271224 KB Output is correct
71 Correct 226 ms 275208 KB Output is correct
72 Correct 238 ms 275448 KB Output is correct
73 Correct 223 ms 275320 KB Output is correct
74 Correct 183 ms 271224 KB Output is correct
75 Correct 187 ms 271352 KB Output is correct
76 Correct 185 ms 271224 KB Output is correct
77 Correct 184 ms 271228 KB Output is correct
78 Correct 241 ms 274680 KB Output is correct
79 Correct 241 ms 274424 KB Output is correct
80 Correct 240 ms 274424 KB Output is correct
81 Correct 230 ms 275320 KB Output is correct
82 Correct 235 ms 274424 KB Output is correct
83 Correct 236 ms 274424 KB Output is correct
84 Correct 194 ms 271360 KB Output is correct
85 Correct 184 ms 271224 KB Output is correct
86 Correct 186 ms 271224 KB Output is correct
87 Correct 187 ms 271224 KB Output is correct
88 Correct 188 ms 271224 KB Output is correct
89 Correct 198 ms 271224 KB Output is correct
90 Correct 184 ms 271228 KB Output is correct
91 Correct 193 ms 271352 KB Output is correct
92 Correct 187 ms 271224 KB Output is correct
93 Correct 185 ms 271224 KB Output is correct
94 Correct 191 ms 271224 KB Output is correct
95 Correct 185 ms 271224 KB Output is correct
96 Correct 186 ms 271224 KB Output is correct
97 Correct 185 ms 271224 KB Output is correct
98 Correct 187 ms 271224 KB Output is correct
99 Correct 182 ms 271224 KB Output is correct
100 Correct 189 ms 271224 KB Output is correct
101 Correct 202 ms 271736 KB Output is correct
102 Correct 187 ms 271608 KB Output is correct
103 Correct 248 ms 275576 KB Output is correct
104 Correct 245 ms 275580 KB Output is correct
105 Correct 255 ms 275576 KB Output is correct
106 Correct 243 ms 275576 KB Output is correct
107 Correct 238 ms 275576 KB Output is correct
108 Correct 237 ms 275576 KB Output is correct
109 Correct 234 ms 276476 KB Output is correct
110 Correct 237 ms 276472 KB Output is correct
111 Correct 243 ms 275576 KB Output is correct
112 Correct 250 ms 275704 KB Output is correct
113 Correct 235 ms 275576 KB Output is correct
114 Correct 246 ms 275576 KB Output is correct
115 Correct 248 ms 275648 KB Output is correct