OJ Board

It said that " If two characters are present the same time print the information of the ASCII character with higher ASCII value first.".

here is my code. Could anyone give me some I/Os? thanks in advance.

#include <stdio.h>
#include <stdlib.h>

#define DB_SIZE 1024
#define OUT_LEN 1024

static int _pi_cmp_(const void* l, const void* r){
int c = **(int**)l - **(int**)r;
if(c) return c;
return *(int**)r - *(int**)l;
}

int main ...

it's so...
if I compile it without argument -O2, I got the AC! Why?

please give me more I/O! thanks!


#include <iostream>
#include <vector>
using namespace std;

static const int lowest_speed = 30;
static const int heighest_speed = 60;

class traffic_t{
double _l;
int _g, _y, _r;
public:
bool can_pass(int speed){
double sec = _l*3600/speed;
return (sec - (int ...

Hi!

I tried to make my code (Is the one all disordered above) with short [] (digit by digit) because I tried to use long long int before and I got WA, and with my rudimentary method (like child) I got AC (obviously it didn't help in the contest)

I wanna ask you something:

Type Bits

int 16
long ...

How can I optimize my solution to run in <=1 sec? Here is my code:


#define For(i,b) for(int i = 0; i < (int)b; ++i)
#define All(t) t.begin(),t.end()
string itos (int i) {stringstream s; s << i; return s.str();}
int stoi (string s) {istringstream in(s); int ret; in >> ret; return ret;}
string ...

sonyckson wrote:"...and the 9999999991 is greater than 2^64!" == FALSE

sorry. you're right. But in C++, long long int seams to be 32-bits.

You are using Big Integers, but actually long long int is enough.
With long long int, I think your code would be much shorter and easier to debug.

-----
Rio

long long int doesn't work, I used double and got AC just now. Although n<=2000000000, how about 1999999999? the maximun of a-b is ...