OJ-Problems-Source/HDOJ/1146_autoAC.cpp

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2016-08-13 10:51:15 +08:00
#include<iostream>
#include<stdio.h>
using namespace std;
int main()
{
int t, c, n, m, i, time, ln[2], lt[2], ont, bt, temp, llt;
bool bleft, tleft;
char ch[10];
cin >> c;
while (c--)
{
ln[0] = ln[1] = lt[0] = lt[1] = 0, bleft = 1, ont = 0, bt = 0;
cin >> n >> t >> m;
for (i = 0; i < m; i++)
{
scanf("%d%s", &time, ch);
if (ch[0] == 'l')
tleft = 1;
else
tleft = 0;
if (bt + ont <= time)
{
bleft = (bleft + ont / t) % 2;
bt = time;
if (bleft == tleft)
{
ln[tleft] = 0;
ont = t;
}
else
{
ln[tleft] = 1;
ont = 2 * t;
}
ln[(tleft + 1) % 2] = 0;
lt[0] = lt[1] = 0;
printf("%d\n", bt + ont);
}
else
{
llt = 0;
if (time >= bt + t)
{
temp = (time - bt) / t;
bt += temp * t;
ont -= temp * t;
bleft = (bleft + temp) % 2;
if (temp % 2)
lt[bleft]--;
lt[0] -= temp / 2;
lt[1] -= temp / 2;
lt[bleft] -= temp % 2;
lt[bleft]++;
if (lt[0] < 0)
{
ln[0] = 0;
lt[0] = 0;
}
if (lt[1] < 0)
{
ln[1] = 0;
lt[1] = 0;
}
}
if (time > bt)
llt = 2 * t;
ln[tleft]++;
if (bleft == tleft)
{
cout << bt + 2 * t * lt[tleft] + t + llt << endl;
if (2 * t * lt[tleft] + t + llt > ont)
ont = 2 * t * lt[tleft] + t + llt;
}
else
{
cout << bt + 2 * t + 2 * t * lt[tleft] << endl;
if (2 * t * lt[tleft] + 2 * t > ont)
ont = 2 * t * lt[tleft] + 2 * t;
}
if (ln[tleft] == n)
{
ln[tleft] = 0;
lt[tleft]++;
}
}
}
if (c)
printf("\n");
}
return 0;
}