oj.uz

Submission #125013

# Submission time Handle Problem Language Result Execution time Memory
125013 2019-07-04T11:06:33 Z HassenAissa Worst Reporter 3 (JOI18_worst_reporter3) C++14
100 / 100
 1219 ms 25424 KB 
#include <bits/stdc++.h>
using namespace std;


vector<int> posi;
vector<int> tab;
long long n;



int main()
{
    long long m,x,t,y;
    scanf("%lld%lld",&n,&m);
    //tab.push_back(1);
    posi.resize(n+1);
    for(long long i=0; i<n; i++)
    {
        scanf("%lld",&x);
        tab.push_back(x);
    }
    posi[0]=1;
    for(long long i=1; i<=n; i++)
    {
        if(posi[i-1]>=tab[i-1])
            posi[i]=posi[i-1];

        else
            posi[i]=posi[i-1]*((tab[i-1]+posi[i-1]-1)/posi[i-1]);
    }
    for(long long i=0; i<m; i++)
    {
        scanf("%lld%lld%lld",&t,&x,&y);
        bool cond=0;
        long long l=0,r=posi.size()-1;
        long long fir=0;
        long long sec=0;
        while(l<=r)
        {
            long long mid=(l+r)/2;
            long long p = posi[mid]*(t/posi[mid]) - mid;
            if(p>=x  && p<=y)
            {
                r=mid-1;
                fir=mid;
                cond=true;
            }
            else if(p<x)
            {
                r=mid-1;
            }
            else
            {
                l=mid+1;
            }
        }
        if(cond==0)
        {
            cout << 0 << endl;
            continue;
        }
        l=fir;
        r=posi.size()-1;
        while(l<=r)
        {
            long long mid=(l+r)/2;
            long long p = posi[mid]*(t/posi[mid]) -mid;
            if(p>=x  && p<=y)
            {
                l=mid+1;
                sec=mid;
            }
            else if(p<x)
            {
                r=mid-1;
            }
            else
            {
                l=mid+1;
            }

        }

        printf("%lld\n",sec-fir+1);
    }
}

Compilation message

worst_reporter3.cpp: In function 'int main()':
worst_reporter3.cpp:14:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld%lld",&n,&m);
     ~~~~~^~~~~~~~~~~~~~~~~~
worst_reporter3.cpp:19:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld",&x);
         ~~~~~^~~~~~~~~~~
worst_reporter3.cpp:33:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld%lld%lld",&t,&x,&y);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1054 ms 22924 KB Output is correct
2 Correct 1073 ms 23032 KB Output is correct
3 Correct 1085 ms 22792 KB Output is correct
4 Correct 1053 ms 22920 KB Output is correct
5 Correct 1043 ms 23020 KB Output is correct
6 Correct 1056 ms 22876 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 4 ms 376 KB Output is correct
3 Correct 4 ms 376 KB Output is correct
4 Correct 4 ms 376 KB Output is correct
5 Correct 3 ms 376 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 1054 ms 22924 KB Output is correct
2 Correct 1073 ms 23032 KB Output is correct
3 Correct 1085 ms 22792 KB Output is correct
4 Correct 1053 ms 22920 KB Output is correct
5 Correct 1043 ms 23020 KB Output is correct
6 Correct 1056 ms 22876 KB Output is correct
7 Correct 3 ms 376 KB Output is correct
8 Correct 4 ms 376 KB Output is correct
9 Correct 4 ms 376 KB Output is correct
10 Correct 4 ms 376 KB Output is correct
11 Correct 3 ms 376 KB Output is correct
12 Correct 3 ms 376 KB Output is correct
13 Correct 1077 ms 21488 KB Output is correct
14 Correct 973 ms 21904 KB Output is correct
15 Correct 1168 ms 20616 KB Output is correct
16 Correct 1107 ms 21136 KB Output is correct
17 Correct 990 ms 23320 KB Output is correct
18 Correct 945 ms 23528 KB Output is correct
19 Correct 951 ms 22752 KB Output is correct
20 Correct 958 ms 23476 KB Output is correct
21 Correct 950 ms 23316 KB Output is correct
22 Correct 999 ms 23304 KB Output is correct
23 Correct 956 ms 23660 KB Output is correct
24 Correct 949 ms 23288 KB Output is correct
25 Correct 1075 ms 22776 KB Output is correct
26 Correct 1082 ms 23016 KB Output is correct
27 Correct 1000 ms 25044 KB Output is correct
28 Correct 1000 ms 25424 KB Output is correct
29 Correct 990 ms 24936 KB Output is correct
30 Correct 1025 ms 25028 KB Output is correct
31 Correct 991 ms 25232 KB Output is correct
32 Correct 1219 ms 21400 KB Output is correct
33 Correct 2 ms 256 KB Output is correct