oj.uz

Submission #705629

# Submission time Handle Problem Language Result Execution time Memory
705629 2023-03-04T20:13:46 Z Username4132 Osumnjičeni (COCI21_osumnjiceni) C++14
110 / 110
 388 ms 42216 KB 
#include<iostream>
#include<set>
using namespace std;
using pii = pair<int, int>;
#define forn(i, n) for(int i=0; i<(int)n; ++i)
#define dforn(i, n) for(int i=n-1; i>=0; --i)
#define F first
#define S second

const int MAXN=200010;
int n, q, l[MAXN], r[MAXN], up[20][MAXN], lo=0;

set<pii> s;

bool test(int ld, int rd){
    auto itrl=s.lower_bound({ld, -2}), itrr=s.upper_bound({rd, 1100000000});
    return (itrl->F==itrr->F) && (itrr==s.end() || itrr->S < n);
}

int main(){
    scanf("%d", &n);
    forn(i, n){
        scanf("%d %d", l+i, r+i);
        while(!test(l[i], r[i])){
            s.erase({l[lo], lo});
            s.erase({r[lo], n+lo});
            up[0][lo++]=i;
        }
        s.insert({l[i], i});
        s.insert({r[i], n+i});
    }
    while(lo<=n) up[0][lo++]=n;
    forn(i, 19) forn(j, n+1) up[i+1][j]=up[i][up[i][j]];
    scanf("%d", &q);
    forn(qnum, q){
        int a, b, ans=1; scanf("%d %d", &a, &b); --a;
        dforn(i, 20) if(up[i][a]<b) a=up[i][a], ans+=(1<<i);
        printf("%d\n", ans);
    }
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:21:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   21 |     scanf("%d", &n);
      |     ~~~~~^~~~~~~~~~
Main.cpp:23:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   23 |         scanf("%d %d", l+i, r+i);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~
Main.cpp:34:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   34 |     scanf("%d", &q);
      |     ~~~~~^~~~~~~~~~
Main.cpp:36:31: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   36 |         int a, b, ans=1; scanf("%d %d", &a, &b); --a;
      |                          ~~~~~^~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 88 ms 20512 KB Output is correct
2 Correct 81 ms 20220 KB Output is correct
3 Correct 81 ms 20240 KB Output is correct
4 Correct 87 ms 20416 KB Output is correct
5 Correct 90 ms 21288 KB Output is correct
6 Correct 75 ms 19484 KB Output is correct
7 Correct 79 ms 19792 KB Output is correct
8 Correct 85 ms 19908 KB Output is correct
9 Correct 93 ms 20336 KB Output is correct
10 Correct 102 ms 19788 KB Output is correct
11 Correct 240 ms 38696 KB Output is correct
12 Correct 222 ms 36428 KB Output is correct
13 Correct 240 ms 36328 KB Output is correct
14 Correct 274 ms 30920 KB Output is correct
15 Correct 245 ms 27704 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 81 ms 20736 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 980 KB Output is correct
2 Correct 5 ms 980 KB Output is correct
3 Correct 4 ms 980 KB Output is correct
4 Correct 4 ms 980 KB Output is correct
5 Correct 4 ms 980 KB Output is correct
6 Correct 5 ms 980 KB Output is correct
7 Correct 4 ms 980 KB Output is correct
8 Correct 4 ms 980 KB Output is correct
9 Correct 5 ms 980 KB Output is correct
10 Correct 5 ms 960 KB Output is correct
11 Correct 6 ms 1364 KB Output is correct
12 Correct 6 ms 1364 KB Output is correct
13 Correct 7 ms 1344 KB Output is correct
14 Correct 7 ms 1108 KB Output is correct
15 Correct 7 ms 1080 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 4 ms 980 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 980 KB Output is correct
2 Correct 5 ms 980 KB Output is correct
3 Correct 4 ms 980 KB Output is correct
4 Correct 4 ms 980 KB Output is correct
5 Correct 4 ms 980 KB Output is correct
6 Correct 5 ms 980 KB Output is correct
7 Correct 4 ms 980 KB Output is correct
8 Correct 4 ms 980 KB Output is correct
9 Correct 5 ms 980 KB Output is correct
10 Correct 5 ms 960 KB Output is correct
11 Correct 6 ms 1364 KB Output is correct
12 Correct 6 ms 1364 KB Output is correct
13 Correct 7 ms 1344 KB Output is correct
14 Correct 7 ms 1108 KB Output is correct
15 Correct 7 ms 1080 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 4 ms 980 KB Output is correct
18 Correct 77 ms 3628 KB Output is correct
19 Correct 75 ms 3260 KB Output is correct
20 Correct 87 ms 3652 KB Output is correct
21 Correct 73 ms 3336 KB Output is correct
22 Correct 78 ms 3464 KB Output is correct
23 Correct 72 ms 3352 KB Output is correct
24 Correct 75 ms 3460 KB Output is correct
25 Correct 77 ms 3492 KB Output is correct
26 Correct 73 ms 3508 KB Output is correct
27 Correct 69 ms 3244 KB Output is correct
28 Correct 73 ms 3356 KB Output is correct
29 Correct 75 ms 3468 KB Output is correct
30 Correct 60 ms 3508 KB Output is correct
31 Correct 65 ms 3136 KB Output is correct
32 Correct 60 ms 3316 KB Output is correct
33 Correct 1 ms 308 KB Output is correct
34 Correct 59 ms 3228 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 84 ms 21348 KB Output is correct
2 Correct 85 ms 21020 KB Output is correct
3 Correct 79 ms 19472 KB Output is correct
4 Correct 99 ms 19364 KB Output is correct
5 Correct 84 ms 19896 KB Output is correct
6 Correct 72 ms 19660 KB Output is correct
7 Correct 81 ms 19580 KB Output is correct
8 Correct 83 ms 19492 KB Output is correct
9 Correct 89 ms 19352 KB Output is correct
10 Correct 106 ms 20840 KB Output is correct
11 Correct 257 ms 36080 KB Output is correct
12 Correct 253 ms 39548 KB Output is correct
13 Correct 216 ms 36060 KB Output is correct
14 Correct 274 ms 28100 KB Output is correct
15 Correct 267 ms 31044 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 87 ms 19936 KB Output is correct

Subtask #5
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 88 ms 20512 KB Output is correct
2 Correct 81 ms 20220 KB Output is correct
3 Correct 81 ms 20240 KB Output is correct
4 Correct 87 ms 20416 KB Output is correct
5 Correct 90 ms 21288 KB Output is correct
6 Correct 75 ms 19484 KB Output is correct
7 Correct 79 ms 19792 KB Output is correct
8 Correct 85 ms 19908 KB Output is correct
9 Correct 93 ms 20336 KB Output is correct
10 Correct 102 ms 19788 KB Output is correct
11 Correct 240 ms 38696 KB Output is correct
12 Correct 222 ms 36428 KB Output is correct
13 Correct 240 ms 36328 KB Output is correct
14 Correct 274 ms 30920 KB Output is correct
15 Correct 245 ms 27704 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 81 ms 20736 KB Output is correct
18 Correct 5 ms 980 KB Output is correct
19 Correct 5 ms 980 KB Output is correct
20 Correct 4 ms 980 KB Output is correct
21 Correct 4 ms 980 KB Output is correct
22 Correct 4 ms 980 KB Output is correct
23 Correct 5 ms 980 KB Output is correct
24 Correct 4 ms 980 KB Output is correct
25 Correct 4 ms 980 KB Output is correct
26 Correct 5 ms 980 KB Output is correct
27 Correct 5 ms 960 KB Output is correct
28 Correct 6 ms 1364 KB Output is correct
29 Correct 6 ms 1364 KB Output is correct
30 Correct 7 ms 1344 KB Output is correct
31 Correct 7 ms 1108 KB Output is correct
32 Correct 7 ms 1080 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 4 ms 980 KB Output is correct
35 Correct 77 ms 3628 KB Output is correct
36 Correct 75 ms 3260 KB Output is correct
37 Correct 87 ms 3652 KB Output is correct
38 Correct 73 ms 3336 KB Output is correct
39 Correct 78 ms 3464 KB Output is correct
40 Correct 72 ms 3352 KB Output is correct
41 Correct 75 ms 3460 KB Output is correct
42 Correct 77 ms 3492 KB Output is correct
43 Correct 73 ms 3508 KB Output is correct
44 Correct 69 ms 3244 KB Output is correct
45 Correct 73 ms 3356 KB Output is correct
46 Correct 75 ms 3468 KB Output is correct
47 Correct 60 ms 3508 KB Output is correct
48 Correct 65 ms 3136 KB Output is correct
49 Correct 60 ms 3316 KB Output is correct
50 Correct 1 ms 308 KB Output is correct
51 Correct 59 ms 3228 KB Output is correct
52 Correct 84 ms 21348 KB Output is correct
53 Correct 85 ms 21020 KB Output is correct
54 Correct 79 ms 19472 KB Output is correct
55 Correct 99 ms 19364 KB Output is correct
56 Correct 84 ms 19896 KB Output is correct
57 Correct 72 ms 19660 KB Output is correct
58 Correct 81 ms 19580 KB Output is correct
59 Correct 83 ms 19492 KB Output is correct
60 Correct 89 ms 19352 KB Output is correct
61 Correct 106 ms 20840 KB Output is correct
62 Correct 257 ms 36080 KB Output is correct
63 Correct 253 ms 39548 KB Output is correct
64 Correct 216 ms 36060 KB Output is correct
65 Correct 274 ms 28100 KB Output is correct
66 Correct 267 ms 31044 KB Output is correct
67 Correct 1 ms 340 KB Output is correct
68 Correct 87 ms 19936 KB Output is correct
69 Correct 321 ms 23480 KB Output is correct
70 Correct 304 ms 24524 KB Output is correct
71 Correct 311 ms 22864 KB Output is correct
72 Correct 296 ms 23880 KB Output is correct
73 Correct 298 ms 23528 KB Output is correct
74 Correct 320 ms 24816 KB Output is correct
75 Correct 293 ms 23224 KB Output is correct
76 Correct 365 ms 24840 KB Output is correct
77 Correct 296 ms 23044 KB Output is correct
78 Correct 295 ms 23400 KB Output is correct
79 Correct 352 ms 42216 KB Output is correct
80 Correct 336 ms 39116 KB Output is correct
81 Correct 330 ms 38904 KB Output is correct
82 Correct 388 ms 31124 KB Output is correct
83 Correct 343 ms 30116 KB Output is correct
84 Correct 1 ms 340 KB Output is correct
85 Correct 149 ms 23052 KB Output is correct