oj.uz

Submission #305509

# Submission time Handle Problem Language Result Execution time Memory
305509 2020-09-23T11:59:50 Z knon0501 Arranging Shoes (IOI19_shoes) C++14
100 / 100
 355 ms 275184 KB 
#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;
const int MX=2e5+5;
int nn;
queue<int> a[MX],b[MX];
int bit[MX*2];
int n;
int f(int x){
    int ret=0;
    for(int i=x ; i>=1 ; i-=(i&-i))ret+=bit[i];
    return ret;
}
void upd(int x){
    for(int i=x ; i<=n ; i+=(i&-i))bit[i]++;
}
long long count_swaps(std::vector<int> s) {
    int i,j;
    long long ans=0;
    n=s.size();
    for(i=0 ; i<n ; i++){
        if(s[i]>0)
            a[s[i]].push(i);
        else
            b[-s[i]].push(i);
    }
    vector<pair<int,int>> v;
    for(i=1 ; i*2<=n ; i++){
        while(!a[i].empty()){
            v.push_back({a[i].front(),b[i].front()});
            a[i].pop();
            b[i].pop();
        }
    }
    sort(v.begin(),v.end(),[&](pair<int,int> q,pair<int,int> w){
         return q.first+q.second-(q.first>q.second)>w.first+w.second-(w.first>w.second);
         });

    for(i=0 ; i<n ; i+=2){
        auto k=v.back();
        v.pop_back();
        ans+=k.first+k.second-(k.first>k.second)+f(n)*2-f(k.first+1)-f(k.second+1)-i*2;
        upd(k.first+1);
        upd(k.second+1);
    }
    return ans;
}

Compilation message

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:18:11: warning: unused variable 'j' [-Wunused-variable]
   18 |     int i,j;
      |           ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 219 ms 269560 KB Output is correct
2 Correct 215 ms 269560 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 219 ms 269560 KB Output is correct
2 Correct 215 ms 269560 KB Output is correct
3 Correct 222 ms 269564 KB Output is correct
4 Correct 211 ms 269560 KB Output is correct
5 Correct 220 ms 269688 KB Output is correct
6 Correct 218 ms 269652 KB Output is correct
7 Correct 218 ms 269560 KB Output is correct
8 Correct 221 ms 269560 KB Output is correct
9 Correct 229 ms 269692 KB Output is correct
10 Correct 220 ms 269560 KB Output is correct
11 Correct 215 ms 269560 KB Output is correct
12 Correct 223 ms 269560 KB Output is correct
13 Correct 216 ms 269560 KB Output is correct
14 Correct 221 ms 269560 KB Output is correct
15 Correct 223 ms 269688 KB Output is correct
16 Correct 218 ms 269564 KB Output is correct
17 Correct 239 ms 269560 KB Output is correct
18 Correct 243 ms 269560 KB Output is correct
19 Correct 239 ms 269560 KB Output is correct
20 Correct 247 ms 269560 KB Output is correct
21 Correct 261 ms 269564 KB Output is correct
22 Correct 259 ms 269688 KB Output is correct
23 Correct 254 ms 269624 KB Output is correct
24 Correct 253 ms 269648 KB Output is correct
25 Correct 250 ms 269560 KB Output is correct
26 Correct 249 ms 269688 KB Output is correct
27 Correct 243 ms 269608 KB Output is correct
28 Correct 248 ms 269540 KB Output is correct
29 Correct 278 ms 269560 KB Output is correct
30 Correct 255 ms 269688 KB Output is correct
31 Correct 237 ms 269560 KB Output is correct
32 Correct 243 ms 269560 KB Output is correct
33 Correct 250 ms 269560 KB Output is correct
34 Correct 239 ms 269560 KB Output is correct
35 Correct 250 ms 269560 KB Output is correct
36 Correct 247 ms 269560 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 219 ms 269560 KB Output is correct
2 Correct 215 ms 269560 KB Output is correct
3 Correct 248 ms 269760 KB Output is correct
4 Correct 248 ms 269688 KB Output is correct
5 Correct 252 ms 269564 KB Output is correct
6 Correct 234 ms 269688 KB Output is correct
7 Correct 249 ms 269560 KB Output is correct
8 Correct 248 ms 269560 KB Output is correct
9 Correct 247 ms 269608 KB Output is correct
10 Correct 264 ms 269560 KB Output is correct
11 Correct 225 ms 269688 KB Output is correct
12 Correct 260 ms 269560 KB Output is correct
13 Correct 220 ms 269576 KB Output is correct
14 Correct 257 ms 269688 KB Output is correct
15 Correct 227 ms 269560 KB Output is correct
16 Correct 260 ms 269688 KB Output is correct
17 Correct 216 ms 269560 KB Output is correct
18 Correct 282 ms 269708 KB Output is correct
19 Correct 253 ms 269816 KB Output is correct
20 Correct 281 ms 270200 KB Output is correct
21 Correct 277 ms 270200 KB Output is correct
22 Correct 310 ms 274932 KB Output is correct
23 Correct 332 ms 275056 KB Output is correct
24 Correct 284 ms 275060 KB Output is correct
25 Correct 324 ms 274788 KB Output is correct
26 Correct 320 ms 275184 KB Output is correct
27 Correct 316 ms 274800 KB Output is correct
28 Correct 315 ms 275060 KB Output is correct
29 Correct 304 ms 274932 KB Output is correct
30 Correct 313 ms 274932 KB Output is correct
31 Correct 293 ms 274932 KB Output is correct
32 Correct 319 ms 274932 KB Output is correct
33 Correct 278 ms 274804 KB Output is correct
34 Correct 324 ms 275060 KB Output is correct
35 Correct 207 ms 269688 KB Output is correct
36 Correct 259 ms 269560 KB Output is correct
37 Correct 273 ms 274936 KB Output is correct
38 Correct 303 ms 274964 KB Output is correct
39 Correct 300 ms 274932 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 218 ms 269656 KB Output is correct
2 Correct 250 ms 269688 KB Output is correct
3 Correct 219 ms 269592 KB Output is correct
4 Correct 256 ms 269668 KB Output is correct
5 Correct 291 ms 274156 KB Output is correct
6 Correct 322 ms 274156 KB Output is correct
7 Correct 297 ms 274156 KB Output is correct
8 Correct 298 ms 274928 KB Output is correct
9 Correct 344 ms 274156 KB Output is correct
10 Correct 294 ms 274156 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 219 ms 269560 KB Output is correct
2 Correct 215 ms 269560 KB Output is correct
3 Correct 222 ms 269564 KB Output is correct
4 Correct 211 ms 269560 KB Output is correct
5 Correct 220 ms 269688 KB Output is correct
6 Correct 218 ms 269652 KB Output is correct
7 Correct 218 ms 269560 KB Output is correct
8 Correct 221 ms 269560 KB Output is correct
9 Correct 229 ms 269692 KB Output is correct
10 Correct 220 ms 269560 KB Output is correct
11 Correct 215 ms 269560 KB Output is correct
12 Correct 223 ms 269560 KB Output is correct
13 Correct 216 ms 269560 KB Output is correct
14 Correct 221 ms 269560 KB Output is correct
15 Correct 223 ms 269688 KB Output is correct
16 Correct 218 ms 269564 KB Output is correct
17 Correct 239 ms 269560 KB Output is correct
18 Correct 243 ms 269560 KB Output is correct
19 Correct 239 ms 269560 KB Output is correct
20 Correct 247 ms 269560 KB Output is correct
21 Correct 261 ms 269564 KB Output is correct
22 Correct 259 ms 269688 KB Output is correct
23 Correct 254 ms 269624 KB Output is correct
24 Correct 253 ms 269648 KB Output is correct
25 Correct 250 ms 269560 KB Output is correct
26 Correct 249 ms 269688 KB Output is correct
27 Correct 243 ms 269608 KB Output is correct
28 Correct 248 ms 269540 KB Output is correct
29 Correct 278 ms 269560 KB Output is correct
30 Correct 255 ms 269688 KB Output is correct
31 Correct 237 ms 269560 KB Output is correct
32 Correct 243 ms 269560 KB Output is correct
33 Correct 250 ms 269560 KB Output is correct
34 Correct 239 ms 269560 KB Output is correct
35 Correct 250 ms 269560 KB Output is correct
36 Correct 247 ms 269560 KB Output is correct
37 Correct 251 ms 269560 KB Output is correct
38 Correct 213 ms 269816 KB Output is correct
39 Correct 248 ms 269560 KB Output is correct
40 Correct 219 ms 269688 KB Output is correct
41 Correct 254 ms 269688 KB Output is correct
42 Correct 204 ms 269596 KB Output is correct
43 Correct 266 ms 269688 KB Output is correct
44 Correct 223 ms 269664 KB Output is correct
45 Correct 268 ms 269688 KB Output is correct
46 Correct 212 ms 269564 KB Output is correct
47 Correct 260 ms 269564 KB Output is correct
48 Correct 216 ms 269564 KB Output is correct
49 Correct 251 ms 269688 KB Output is correct
50 Correct 257 ms 269688 KB Output is correct
51 Correct 261 ms 269688 KB Output is correct
52 Correct 240 ms 269688 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 219 ms 269560 KB Output is correct
2 Correct 215 ms 269560 KB Output is correct
3 Correct 222 ms 269564 KB Output is correct
4 Correct 211 ms 269560 KB Output is correct
5 Correct 220 ms 269688 KB Output is correct
6 Correct 218 ms 269652 KB Output is correct
7 Correct 218 ms 269560 KB Output is correct
8 Correct 221 ms 269560 KB Output is correct
9 Correct 229 ms 269692 KB Output is correct
10 Correct 220 ms 269560 KB Output is correct
11 Correct 215 ms 269560 KB Output is correct
12 Correct 223 ms 269560 KB Output is correct
13 Correct 216 ms 269560 KB Output is correct
14 Correct 221 ms 269560 KB Output is correct
15 Correct 223 ms 269688 KB Output is correct
16 Correct 218 ms 269564 KB Output is correct
17 Correct 239 ms 269560 KB Output is correct
18 Correct 243 ms 269560 KB Output is correct
19 Correct 239 ms 269560 KB Output is correct
20 Correct 247 ms 269560 KB Output is correct
21 Correct 261 ms 269564 KB Output is correct
22 Correct 259 ms 269688 KB Output is correct
23 Correct 254 ms 269624 KB Output is correct
24 Correct 253 ms 269648 KB Output is correct
25 Correct 250 ms 269560 KB Output is correct
26 Correct 249 ms 269688 KB Output is correct
27 Correct 243 ms 269608 KB Output is correct
28 Correct 248 ms 269540 KB Output is correct
29 Correct 278 ms 269560 KB Output is correct
30 Correct 255 ms 269688 KB Output is correct
31 Correct 237 ms 269560 KB Output is correct
32 Correct 243 ms 269560 KB Output is correct
33 Correct 250 ms 269560 KB Output is correct
34 Correct 239 ms 269560 KB Output is correct
35 Correct 250 ms 269560 KB Output is correct
36 Correct 247 ms 269560 KB Output is correct
37 Correct 248 ms 269760 KB Output is correct
38 Correct 248 ms 269688 KB Output is correct
39 Correct 252 ms 269564 KB Output is correct
40 Correct 234 ms 269688 KB Output is correct
41 Correct 249 ms 269560 KB Output is correct
42 Correct 248 ms 269560 KB Output is correct
43 Correct 247 ms 269608 KB Output is correct
44 Correct 264 ms 269560 KB Output is correct
45 Correct 225 ms 269688 KB Output is correct
46 Correct 260 ms 269560 KB Output is correct
47 Correct 220 ms 269576 KB Output is correct
48 Correct 257 ms 269688 KB Output is correct
49 Correct 227 ms 269560 KB Output is correct
50 Correct 260 ms 269688 KB Output is correct
51 Correct 216 ms 269560 KB Output is correct
52 Correct 282 ms 269708 KB Output is correct
53 Correct 253 ms 269816 KB Output is correct
54 Correct 281 ms 270200 KB Output is correct
55 Correct 277 ms 270200 KB Output is correct
56 Correct 310 ms 274932 KB Output is correct
57 Correct 332 ms 275056 KB Output is correct
58 Correct 284 ms 275060 KB Output is correct
59 Correct 324 ms 274788 KB Output is correct
60 Correct 320 ms 275184 KB Output is correct
61 Correct 316 ms 274800 KB Output is correct
62 Correct 315 ms 275060 KB Output is correct
63 Correct 304 ms 274932 KB Output is correct
64 Correct 313 ms 274932 KB Output is correct
65 Correct 293 ms 274932 KB Output is correct
66 Correct 319 ms 274932 KB Output is correct
67 Correct 278 ms 274804 KB Output is correct
68 Correct 324 ms 275060 KB Output is correct
69 Correct 207 ms 269688 KB Output is correct
70 Correct 259 ms 269560 KB Output is correct
71 Correct 273 ms 274936 KB Output is correct
72 Correct 303 ms 274964 KB Output is correct
73 Correct 300 ms 274932 KB Output is correct
74 Correct 218 ms 269656 KB Output is correct
75 Correct 250 ms 269688 KB Output is correct
76 Correct 219 ms 269592 KB Output is correct
77 Correct 256 ms 269668 KB Output is correct
78 Correct 291 ms 274156 KB Output is correct
79 Correct 322 ms 274156 KB Output is correct
80 Correct 297 ms 274156 KB Output is correct
81 Correct 298 ms 274928 KB Output is correct
82 Correct 344 ms 274156 KB Output is correct
83 Correct 294 ms 274156 KB Output is correct
84 Correct 251 ms 269560 KB Output is correct
85 Correct 213 ms 269816 KB Output is correct
86 Correct 248 ms 269560 KB Output is correct
87 Correct 219 ms 269688 KB Output is correct
88 Correct 254 ms 269688 KB Output is correct
89 Correct 204 ms 269596 KB Output is correct
90 Correct 266 ms 269688 KB Output is correct
91 Correct 223 ms 269664 KB Output is correct
92 Correct 268 ms 269688 KB Output is correct
93 Correct 212 ms 269564 KB Output is correct
94 Correct 260 ms 269564 KB Output is correct
95 Correct 216 ms 269564 KB Output is correct
96 Correct 251 ms 269688 KB Output is correct
97 Correct 257 ms 269688 KB Output is correct
98 Correct 261 ms 269688 KB Output is correct
99 Correct 240 ms 269688 KB Output is correct
100 Correct 237 ms 269708 KB Output is correct
101 Correct 261 ms 270124 KB Output is correct
102 Correct 225 ms 270200 KB Output is correct
103 Correct 351 ms 274156 KB Output is correct
104 Correct 329 ms 274156 KB Output is correct
105 Correct 323 ms 274156 KB Output is correct
106 Correct 334 ms 274156 KB Output is correct
107 Correct 325 ms 274156 KB Output is correct
108 Correct 301 ms 274160 KB Output is correct
109 Correct 322 ms 275056 KB Output is correct
110 Correct 308 ms 274932 KB Output is correct
111 Correct 313 ms 274160 KB Output is correct
112 Correct 355 ms 274284 KB Output is correct
113 Correct 324 ms 274284 KB Output is correct
114 Correct 316 ms 274356 KB Output is correct
115 Correct 351 ms 274156 KB Output is correct