Pagini recente » Cod sursa (job #1823349) | Cod sursa (job #2239998) | Cod sursa (job #2771995) | Cod sursa (job #645228) | Cod sursa (job #1496962)
#include <cstdio>
#include <algorithm>
#define Dim 400002
using namespace std;
int n, Smax, L, F, x, c, s[Dim], p;
int d[Dim], st, dr;
void read()
{
freopen("buline.in", "r", stdin);
freopen("buline.out", "w", stdout);
scanf("%d", &n);
for(int i = 1; i <= n; ++ i)
{
scanf("%d %d", &x, &c);
if(c == 0)
s[i] = s[i - 1] - x;
else
s[i] = s[i - 1] + x;
}
for(int i = n + 1; i <= 2 * n; ++ i)
s[i] = s[i - 1] + s[i - n] - s[i - n - 1];
}
void solve()
{
st = 1;
dr = 0;
for(int i = 1; i <= 2 * n; ++ i)
{
/// actualizez coada
while(st <= dr && s[d[dr]] >= s[i])
dr --;
d[++ dr] = i;
while(i - d[st] == n + 1)
st ++;
if(Smax == s[i] - s[d[st]] && F == d[st] + 1 && L > i - d[st])
L = i - d[st];
if(Smax < s[i] - s[d[st]])
{
Smax = s[i] - s[d[st]];
F = d[st] + 1;
L = i - d[st];
}
}
}
void write()
{
printf("%d %d %d\n", Smax, F, L);
}
int main()
{
read();
solve();
write();
return 0;
}