e*y
2 楼
需要帮家里人买美国国内往返的机票,最便宜的nonstop是us airways 得代理jet,
Operated by Air Wisconsin ,要310一个人.我现在有united,southwest的里程
,spg点数.怎么换票啊.southwest便宜,可是要换飞机。我是裸买好呢,还是去买点
数好?还是有便宜的GC 卖?多谢!
Operated by Air Wisconsin ,要310一个人.我现在有united,southwest的里程
,spg点数.怎么换票啊.southwest便宜,可是要换飞机。我是裸买好呢,还是去买点
数好?还是有便宜的GC 卖?多谢!
h*s
3 楼
我家贷款额比较少(不到150,000), 15年只能拿到3.875%。
大家这两天做的都拿到多少啊?
大家这两天做的都拿到多少啊?
s*c
5 楼
买经济舱,最好是花钱买
点数用来兑换商务或头等舱划算
点数用来兑换商务或头等舱划算
G*l
6 楼
15年只能拿到3.875%, any closing cost?
h*s
9 楼
是啊,不知道还有没有更低的
h*s
11 楼
是啊,不知道还有没有更低的
h*s
13 楼
是啊,不知道还有没有更低的
d*2
19 楼
You don't have to store the values (b,2b,4b, etc). Use recursion, it
actually stores it for you already.
int DivideR(int a, int& res, int div, int inc)
{
if(inc + inc > a)
{
res = div;
return inc;
}
int t1 = DivideR(a, res, div+div, inc+inc);
int t2 = t1 + inc;
if( t2 <= a)
{
res += div;
return t2;
}
return t1;
}
//assume positive number. Otherwise, check it and adjust accordingly.
int Divide(int a, int b)
{
if(a < b)
return 0;
int res = 0;
DivideR(a, res, 1, b);
return res;
}
actually stores it for you already.
int DivideR(int a, int& res, int div, int inc)
{
if(inc + inc > a)
{
res = div;
return inc;
}
int t1 = DivideR(a, res, div+div, inc+inc);
int t2 = t1 + inc;
if( t2 <= a)
{
res += div;
return t2;
}
return t1;
}
//assume positive number. Otherwise, check it and adjust accordingly.
int Divide(int a, int b)
{
if(a < b)
return 0;
int res = 0;
DivideR(a, res, 1, b);
return res;
}
j*u
20 楼
A non recursive version:
// Assume a > 0, b > 0.
int Div(int a, int b)
{
int result = 0;
for (int acc = 0; acc + b <= a;)
{
int factor = 1, inc = b;
for (; acc + inc + inc <= a; inc += inc, factor += factor);
acc += inc;
result += factor;
}
return result;
}
// Assume a > 0, b > 0.
int Div(int a, int b)
{
int result = 0;
for (int acc = 0; acc + b <= a;)
{
int factor = 1, inc = b;
for (; acc + inc + inc <= a; inc += inc, factor += factor);
acc += inc;
result += factor;
}
return result;
}
r*l
24 楼
//A recursive solution. Assume a>0 and b>0. Easy to change the code with a
sign flag if a or b can be negative.
//Calculate a / b
int divide (int a, int b) {
assert (b > 0);
assert (a > 0);
if (a < b) {
return 0;
}
int result = 1;
int cum = b;
while (cum < a) {
result <<= 1;
cum <<= 1;
}
if (cum == a) {
return result;
}
else {
result >>= 1;
cum >>= 1;
return result + divide(a-cum, b);
}
}
sign flag if a or b can be negative.
//Calculate a / b
int divide (int a, int b) {
assert (b > 0);
assert (a > 0);
if (a < b) {
return 0;
}
int result = 1;
int cum = b;
while (cum < a) {
result <<= 1;
cum <<= 1;
}
if (cum == a) {
return result;
}
else {
result >>= 1;
cum >>= 1;
return result + divide(a-cum, b);
}
}
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