Pagini recente » Cod sursa (job #1889640) | Cod sursa (job #2283020) | Cod sursa (job #614631) | Cod sursa (job #2955216) | Cod sursa (job #1911025)
#include <bits/stdc++.h>
#define per pair<int,int>
using namespace std;
int last , n, m, aux[100005];
per a[100005];
inline bool solve(int timp)
{
int ramase = m;
for (int i = 1; i<=n && ramase > 0; ++i)
{
long long necesar = 2 * a[i].second;
long long posibil = timp / necesar;
ramase -= a[i].first * posibil;
}
return (ramase <= 0);
}
int main()
{
freopen("garaj.in", "r", stdin);
freopen("garaj.out", "w", stdout);
scanf("%d %d\n", &n, &m);
for (int i = 1; i<=n; ++i)
scanf("%d %d\n", &a[i].first, &a[i].second);
int st = 1, dr = INT_MAX - 1;
while (st <= dr)
{
int mid = (st + dr) >> 1;
if (solve(mid))
last = mid , dr = mid - 1;
else
st = mid + 1;
}
printf("%d ", last);
for (int i = 1; i<=n; ++i)
aux[i] = 1LL * a[i].first * 1LL * last / 1LL / a[i].second / 2LL;
sort(aux + 1,aux + n + 1);
int ans = 0;
for (int i = n; i>=1 && m > 0; --i)
{
m-=aux[i];
++ans;
}
printf("%d\n", ans);
return 0;
}