China Railway stipulates that the mileage is priced in a tiered manner according to the mileage range

/* Algorithm: according to Chinese railway regulations, the mileage is priced in a tiered manner according to the mileage range.
* 1-km: 10 km for each section of 20 CIDR blocks,
*-Km: 20 km for each section of 10 CIDR blocks,
*-Km: 30 km for each section of 10 CIDR blocks,
* 70-1-km: 40 km for each section of 10 CIDR blocks,
*-Km: 50 km for each section of 10 blocks,
*-Km: 60 km for each section of the 10 section,
* 2-2-2900 km: 70 km for each section of Area 10,
* 2901-3700 km: 10 blocks, 80 km for each segment,
* 3701-4600 km: 90 km for each section of the 10 Section,
* 4600 kilometers or more, 100 kilometers per section.
* The mileage is calculated based on the shard section of each segment, and then summed.
*
* Progressive decrease:
* 1-200 km, with a progressive reduction rate of 0%.
* In the range of 10%-km, the delivery rate is.
* The descent rate is 20% in the range of-km.
* 30%-km, with a progressive reduction rate.
* The descent rate is 40% in the range of-km.
* The descent rate is 2500 in the range above 50% km.
*
* Calculate the discount rate of each section of the price range based on the discount rate of the area in which the price range is delivered, and then calculate the discount mileage for each section,
* This is the mileage that generates the fee and is used for calculating the next fare.
**/
Private Static int getfavourabletolldistance (INT km ){

// Determine the mileage range
If (km> 0 ){
If (km & gt; 200 ){
If (km & gt; 400 ){
If (km & gt; 700 ){
If (km & gt; 1100 ){
If (km & gt; 1600 ){
If (km & gt; 2200 ){
If (km & gt; 2900 ){
If (km & gt; 3700 ){
If (km & gt; 4600 ){
Km = (km-4600)/100 + 1) * 100 + 4600;
} Else {
Km = (km-3700)/90 + 1) * 90 + 3700;
}
} Else {
Km = (km-2900)/80 + 1) * 80 + 2900;
}
} Else {
Km = (km-2200)/70 + 1) * 70 + 2200;
}
} Else {
Km = (km-1600)/60 + 1) * 60 + 1600;
}
} Else {
Km = (km-1100)/50 + 1) * 50 + 1100;
}
} Else {
Km = (km-700)/40 + 1) * 40 + 700;
}
} Else {
Km = (km-400)/30 + 1) * 30 + 400;
}
} Else {
Km = (km-200)/20 + 1) * 20 + 200;
}
} Else {
Km = (km/10 + 1) * 10;
}
} Else {
Km = 0;
}
// Discount for descending order
If (km & gt; 2500 ){
Km = (INT) (km-2500) * 0.5 + 1000*0.6 + 500*0.7 + 500*0.8
+ 300*0.9 + 200*1 );
} Else {
If (km & gt; 1500 ){
Km = (INT) (km-1500) * 0.6 + 500*0.7 + 500*0.8 + 300
* 0.9 + 200*1 );
} Else {
If (km & gt; 1000 ){
Km = (INT) (km-1000) * 0.7 + 500*0.8 + 300*0.9 + 200*1 );
} Else {
If (km & gt; 500 ){
Km = (INT) (km-500) * 0.8 + 300*0.9 + 200*1 );
} Else {
If (km & gt; 200 ){
Km = (INT) (km-200) * 0.9 + 200*1 );
} Else {
If (km> 0 ){

} Else {
Km = 0;
}
}
}
}
}
}

Return km;
}