Submission #978743

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
978743	2024-05-09T15:02:43 Z	DobromirAngelov	Self Study (JOI22_ho_t2)	C++14	0 / 100	143 ms	17488 KB

Main

#include<bits/stdc++.h>
#define endl '\n'

using namespace std;

const int MAXN=3e6+5;
const long long INF=1e18+5;

int n,m;
long long a[MAXN];
long long b[MAXN];

bool check(long long val)
{
    long long s=0;
    bool fl=0;
    for(int i=1;i<=n;i++)
    {
        long long cur=0;
        if(a[i]*m>=val) cur+=(val+a[i]-1)/a[i];
        else cur+=m+(val-a[i]*m+b[i]-1)/b[i];
        s+=cur;
        if(cur>1) fl=1;
    }
    if(fl && s<=n) cout<<1/0<<endl;
    if(s>n) return 0;
    return 1;
}

long long ans;

int main()
{
ios::sync_with_stdio(false);
cin.tie(NULL);
cout.tie(NULL);

cin>>n>>m;
for(int i=1;i<=n;i++) cin>>a[i];
for(int i=1;i<=n;i++) cin>>b[i];

for(int i=1;i<=n;i++) a[i]=max(a[i],b[i]);

ans=INF;
for(int i=1;i<=n;i++) ans=min(ans, a[i]);

long long l=1,r=INF;
while(l<r)
{
    long long mid=(l+r+1)/2;
    if(check(mid)) l=mid;
    else r=mid-1;
}


//if(ans<l) cout<<1/0<<endl;

cout<<l<<endl;

return 0;
}

Compilation message

Main.cpp: In function 'bool check(long long int)':
Main.cpp:25:27: warning: division by zero [-Wdiv-by-zero]
   25 |     if(fl && s<=n) cout<<1/0<<endl;
      |                          ~^~

Subtask #1

0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	2392 KB	Output is correct
2	Correct	1 ms	2396 KB	Output is correct
3	Correct	1 ms	2396 KB	Output is correct
4	Correct	1 ms	2396 KB	Output is correct
5	Correct	1 ms	2396 KB	Output is correct
6	Correct	1 ms	2396 KB	Output is correct
7	Correct	1 ms	2396 KB	Output is correct
8	Correct	1 ms	2396 KB	Output is correct
9	Correct	1 ms	2396 KB	Output is correct
10	Correct	3 ms	2396 KB	Output is correct
11	Correct	143 ms	8824 KB	Output is correct
12	Correct	143 ms	8788 KB	Output is correct
13	Correct	137 ms	8788 KB	Output is correct
14	Runtime error	46 ms	17488 KB	Execution killed with signal 4
15	Halted	0 ms	0 KB	-

Subtask #2

0 / 25.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	1 ms	2392 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #3

0 / 27.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	2392 KB	Output is correct
2	Correct	1 ms	2396 KB	Output is correct
3	Correct	1 ms	2396 KB	Output is correct
4	Correct	1 ms	2396 KB	Output is correct
5	Correct	1 ms	2396 KB	Output is correct
6	Correct	1 ms	2396 KB	Output is correct
7	Correct	1 ms	2396 KB	Output is correct
8	Correct	1 ms	2396 KB	Output is correct
9	Correct	1 ms	2396 KB	Output is correct
10	Correct	3 ms	2396 KB	Output is correct
11	Correct	143 ms	8824 KB	Output is correct
12	Correct	143 ms	8788 KB	Output is correct
13	Correct	137 ms	8788 KB	Output is correct
14	Runtime error	46 ms	17488 KB	Execution killed with signal 4
15	Halted	0 ms	0 KB	-

Subtask #4

0 / 29.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	1 ms	2392 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #5

0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	2392 KB	Output is correct
2	Correct	1 ms	2396 KB	Output is correct
3	Correct	1 ms	2396 KB	Output is correct
4	Correct	1 ms	2396 KB	Output is correct
5	Correct	1 ms	2396 KB	Output is correct
6	Correct	1 ms	2396 KB	Output is correct
7	Correct	1 ms	2396 KB	Output is correct
8	Correct	1 ms	2396 KB	Output is correct
9	Correct	1 ms	2396 KB	Output is correct
10	Correct	3 ms	2396 KB	Output is correct
11	Correct	143 ms	8824 KB	Output is correct
12	Correct	143 ms	8788 KB	Output is correct
13	Correct	137 ms	8788 KB	Output is correct
14	Runtime error	46 ms	17488 KB	Execution killed with signal 4
15	Halted	0 ms	0 KB	-