oj.uz

Submission #211010

# Submission time Handle Problem Language Result Execution time Memory
211010 2020-03-19T05:35:11 Z DodgeBallMan Worst Reporter 3 (JOI18_worst_reporter3) C++14
100 / 100
 890 ms 29464 KB 
#include <bits/stdc++.h>
#define long long long 
using namespace std;

const int N = 5e5 + 10;
int n, q;
long d[N], t[N];

long chk( long x, long ti ) { return ( ti/t[x] ) * t[x] - x; }
int main()
{
    scanf("%d %d",&n,&q);
    d[0] = 1, t[0] = 1;
    for( int i = 1 ; i <= n ; i++ ) scanf("%lld",&d[i]);
    //printf("\n");
    for( int i = 1 ; i <= n ; i++ ) {
        long a = d[i] / t[i-1];
        if( a*t[i-1] != d[i] ) a++;
        t[i] = t[i-1] * a;
        //printf("%lld\n",t[i]);
    }
    while( q-- ) {
        long ti, le, ri, lb, rb;
        scanf("%lld %lld %lld",&ti,&le,&ri);
        int l = 0, r = n;
        if( chk( 0, ti  ) < le ) {
            printf("0\n");
            continue ;
        }
        else if( chk( n, ti ) > ri ) {
            printf("0\n");
            continue ;
        }
        while( l < r ) {
            long mid = ( long )( l + r >> 1 );
            if( chk( mid, ti ) <= ri ) r = mid;
            else l = mid + 1;
        }
        rb = ( long )l, l = 0, r = n;
        while( l < r ) {
            long mid = ( long )( l + r + 1 >> 1 );
            if( chk( mid, ti ) >= le ) l = mid;
            else r = mid - 1;
        }
        lb = ( long )l;
        //printf("%lld %lld\n",lb,rb);
        printf("%lld\n",lb-rb+1);
    }
    return 0;
}

Compilation message

worst_reporter3.cpp: In function 'int main()':
worst_reporter3.cpp:35:36: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
             long mid = ( long )( l + r >> 1 );
                                  ~~^~~
worst_reporter3.cpp:41:40: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
             long mid = ( long )( l + r + 1 >> 1 );
                                  ~~~~~~^~~
worst_reporter3.cpp:12:10: 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:14:42: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for( int i = 1 ; i <= n ; i++ ) scanf("%lld",&d[i]);
                                     ~~~~~^~~~~~~~~~~~~~
worst_reporter3.cpp:24:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld %lld %lld",&ti,&le,&ri);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 872 ms 26656 KB Output is correct
2 Correct 833 ms 26684 KB Output is correct
3 Correct 874 ms 26680 KB Output is correct
4 Correct 886 ms 26720 KB Output is correct
5 Correct 845 ms 26712 KB Output is correct
6 Correct 890 ms 26612 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 384 KB Output is correct
2 Correct 6 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 7 ms 360 KB Output is correct
6 Correct 6 ms 384 KB Output is correct

Subtask #3
81.0 / 81.0

# Verdict Execution time Memory Grader output
1 Correct 872 ms 26656 KB Output is correct
2 Correct 833 ms 26684 KB Output is correct
3 Correct 874 ms 26680 KB Output is correct
4 Correct 886 ms 26720 KB Output is correct
5 Correct 845 ms 26712 KB Output is correct
6 Correct 890 ms 26612 KB Output is correct
7 Correct 6 ms 384 KB Output is correct
8 Correct 6 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 2 ms 384 KB Output is correct
11 Correct 7 ms 360 KB Output is correct
12 Correct 6 ms 384 KB Output is correct
13 Correct 674 ms 25144 KB Output is correct
14 Correct 621 ms 25824 KB Output is correct
15 Correct 584 ms 24364 KB Output is correct
16 Correct 544 ms 24952 KB Output is correct
17 Correct 706 ms 29176 KB Output is correct
18 Correct 701 ms 29168 KB Output is correct
19 Correct 863 ms 29464 KB Output is correct
20 Correct 738 ms 29180 KB Output is correct
21 Correct 814 ms 29296 KB Output is correct
22 Correct 779 ms 29372 KB Output is correct
23 Correct 785 ms 29176 KB Output is correct
24 Correct 709 ms 29408 KB Output is correct
25 Correct 869 ms 26692 KB Output is correct
26 Correct 879 ms 26744 KB Output is correct
27 Correct 791 ms 28796 KB Output is correct
28 Correct 727 ms 29048 KB Output is correct
29 Correct 664 ms 28580 KB Output is correct
30 Correct 719 ms 28820 KB Output is correct
31 Correct 710 ms 28956 KB Output is correct
32 Correct 648 ms 25212 KB Output is correct
33 Correct 5 ms 384 KB Output is correct