Submission #1779112
Source Code Expand
#include<iostream>
#include<cstdio>
#include<string>
#include<cstring>
#include<cmath>
#include<algorithm>
#include<stack>
#include<queue>
#include<set>
#include<map>
#include<vector>
#define N 1001000
#define INF 10000000000
#define mem(a,b) memset(a,b,sizeof(a))
#define sqr(x) return x*x
#define abs(x) return x>0?x:(-x)
typedef long long ll;
//coding........
ll w[N];
int n;
ll a,b;
ll maxn=-INF;
using namespace std;
ll Check(ll ans)
{
int sum=0;
for (int i=0;i<n;i++)
{
ll temp=w[i]-ans*b;
if (temp>0)
{
sum+= temp/(a-b);
if (temp%(a-b))
sum++;
if (sum>ans||sum<0)
return 0;
}
}
return 1;
}
void solve()
{
ll left=0,right=maxn;
while (left<right)
{
ll mid=(left+right)/2;
if (Check(mid))
right=mid;
else
left=mid+1;
}
printf("%lld\n",right);
}
int main()
{
scanf("%d%lld%lld",&n,&a,&b);
for (int i=0;i<n;i++)
{
scanf("%lld",&w[i]);
maxn=max(maxn,w[i]);
}
solve();
return 0;
}
Submission Info
Submission Time
2017-11-17 15:21:46+0900
Task
D - Widespread
User
vjudge4
Language
C++14 (GCC 5.4.1)
Score
400
Code Size
1136 Byte
Status
AC
Exec Time
38 ms
Memory
1024 KB
Compile Error
./Main.cpp: In function ‘int main()’:
./Main.cpp:58:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%d%lld%lld",&n,&a,&b);
^
./Main.cpp:61:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%lld",&w[i]);
^
Judge Result
Set Name
Sample
All
Score / Max Score
0 / 0
400 / 400
Status
Set Name
Test Cases
Sample
a01, a02, a03
All
a01, a02, a03, b04, b05, b06, b07, b08, b09, b10, b11, b12, b13
Case Name
Status
Exec Time
Memory
a01
AC
1 ms
256 KB
a02
AC
1 ms
256 KB
a03
AC
1 ms
256 KB
b04
AC
1 ms
256 KB
b05
AC
15 ms
1024 KB
b06
AC
30 ms
1024 KB
b07
AC
25 ms
1024 KB
b08
AC
24 ms
1024 KB
b09
AC
14 ms
1024 KB
b10
AC
14 ms
1024 KB
b11
AC
16 ms
1024 KB
b12
AC
16 ms
1024 KB
b13
AC
38 ms
1024 KB