oj.uz

Submission #132839

# Submission time Handle Problem Language Result Execution time Memory
132839 2019-07-19T18:03:08 Z duality Worst Reporter 3 (JOI18_worst_reporter3) C++11
100 / 100
 522 ms 25664 KB 
#include <bits/stdc++.h>
using namespace std;
#define mp make_pair
#define pb push_back
typedef long long int LLI;
typedef pair<int,int> pii;
typedef vector<int> vi;
typedef vector<pii> vpii;

int D[500000],p[500001];
struct group { int s,e,p; };
vector<group> groups;
int main() {
    int i;
    int N,Q;
    scanf("%d %d",&N,&Q);
    for (i = 0; i < N; i++) scanf("%d",&D[i]);

    p[0] = 1;
    for (i = 0; i < N; i++) {
        int x = (D[i]+p[i]-1)/p[i];
        p[i+1] = p[i]*x;
        if (p[i+1] > 1.1e9) p[i+1] = 1.1e9;
    }
    for (i = 0; i <= N; i++) {
        if ((i == 0) || (p[i] != p[i-1])) groups.pb((group){-i,-i,p[i]});
        else groups.back().s = -i;
    }

    int j,T,L,R;
    for (i = 0; i < Q; i++) {
        scanf("%d %d %d",&T,&L,&R);
        int ans = 0;
        for (j = 0; j < groups.size(); j++) {
            int x = (T/groups[j].p)*groups[j].p;
            int s = max(groups[j].s+x,L),e = min(groups[j].e+x,R);
            if (s <= e) ans += e-s+1;
        }
        printf("%d\n",ans);
    }

    return 0;
}

Compilation message

worst_reporter3.cpp: In function 'int main()':
worst_reporter3.cpp:34:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (j = 0; j < groups.size(); j++) {
                     ~~^~~~~~~~~~~~~~~
worst_reporter3.cpp:16:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d",&N,&Q);
     ~~~~~^~~~~~~~~~~~~~~
worst_reporter3.cpp:17:34: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for (i = 0; i < N; i++) scanf("%d",&D[i]);
                             ~~~~~^~~~~~~~~~~~
worst_reporter3.cpp:32:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d %d",&T,&L,&R);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 383 ms 22792 KB Output is correct
2 Correct 379 ms 22776 KB Output is correct
3 Correct 380 ms 22652 KB Output is correct
4 Correct 380 ms 22776 KB Output is correct
5 Correct 378 ms 22672 KB Output is correct
6 Correct 378 ms 22732 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 376 KB Output is correct
2 Correct 3 ms 376 KB Output is correct
3 Correct 3 ms 376 KB Output is correct
4 Correct 3 ms 376 KB Output is correct
5 Correct 3 ms 504 KB Output is correct
6 Correct 3 ms 376 KB Output is correct

Subtask #3
81.0 / 81.0

# Verdict Execution time Memory Grader output
1 Correct 383 ms 22792 KB Output is correct
2 Correct 379 ms 22776 KB Output is correct
3 Correct 380 ms 22652 KB Output is correct
4 Correct 380 ms 22776 KB Output is correct
5 Correct 378 ms 22672 KB Output is correct
6 Correct 378 ms 22732 KB Output is correct
7 Correct 3 ms 376 KB Output is correct
8 Correct 3 ms 376 KB Output is correct
9 Correct 3 ms 376 KB Output is correct
10 Correct 3 ms 376 KB Output is correct
11 Correct 3 ms 504 KB Output is correct
12 Correct 3 ms 376 KB Output is correct
13 Correct 395 ms 21180 KB Output is correct
14 Correct 410 ms 21792 KB Output is correct
15 Correct 380 ms 20600 KB Output is correct
16 Correct 396 ms 21040 KB Output is correct
17 Correct 481 ms 25356 KB Output is correct
18 Correct 478 ms 25336 KB Output is correct
19 Correct 484 ms 25464 KB Output is correct
20 Correct 487 ms 25260 KB Output is correct
21 Correct 483 ms 25444 KB Output is correct
22 Correct 485 ms 25664 KB Output is correct
23 Correct 487 ms 25260 KB Output is correct
24 Correct 477 ms 25336 KB Output is correct
25 Correct 389 ms 22648 KB Output is correct
26 Correct 403 ms 22648 KB Output is correct
27 Correct 495 ms 24984 KB Output is correct
28 Correct 497 ms 25208 KB Output is correct
29 Correct 488 ms 24612 KB Output is correct
30 Correct 522 ms 24824 KB Output is correct
31 Correct 493 ms 25020 KB Output is correct
32 Correct 364 ms 21320 KB Output is correct
33 Correct 2 ms 252 KB Output is correct