卡特兰数
http://blog.csdn.net/hackbuteer1/article/details/7450250
//AW程序
#include <iostream>
#include <cstdio>
#include <iomanip>
#include <cstring>
#define max 101
#define maxnum 60
#define maxint 10000
using namespace std;
#include <iostream>
#include <cstdio>
#include <iomanip>
#include <cstring>
#define max 101
#define maxnum 60
#define maxint 10000
using namespace std;
struct bigint
{
int perint[maxnum];
bigint()
{
for(int i = 0;i < maxnum;i++)
perint[i] = 0;
}
bigint(const bigint & b)
{
for(int i = 0;i < maxnum;i++)
perint[i] = b.perint[i];
}
bigint & operator*(int & b)
{
// cout << "mul " << b << endl;
int c = 0,cur;
bigint t;
for(int i = 0;i < maxnum;i++)
{
// if(!c && i)
// break;
cur = perint[i] * b + c;
t.perint[i] = cur % maxint;
c = cur / maxint;
// cout << "mul " << cur << " " << c << endl;
}
return t;
}
bigint & operator/(int & b)
{
// cout << "div " << b << endl;
// cout << "this " << *this << endl;
int c = 0,cur,s;
bigint t;
for(int i = maxnum - 1;i >=0 ;i--)
if(perint[i])
{
s = i;
break;
}
for(int i = s;i >=0 ;i--)
{
cur = c * maxint + perint[i];
t.perint[i] = cur / b;
// cout << "t " << t.perint[i] << endl;
c = cur % b;
// cout << "div " << cur / b << " " << c << endl;
}
// cout << t << endl;
return t;
}
friend ostream & operator<<(ostream &out,bigint b)
{
int s;
for(int i = maxnum - 1;i >=0 ;i--)
if(b.perint[i])
{
s = i;
break;
}
out << b.perint[s];
for(int i = s - 1;i >= 0;i--)
if(b.perint[i])
out << setfill('0') << setw(4) << b.perint[i];
return out;
}
};
{
int perint[maxnum];
bigint()
{
for(int i = 0;i < maxnum;i++)
perint[i] = 0;
}
bigint(const bigint & b)
{
for(int i = 0;i < maxnum;i++)
perint[i] = b.perint[i];
}
bigint & operator*(int & b)
{
// cout << "mul " << b << endl;
int c = 0,cur;
bigint t;
for(int i = 0;i < maxnum;i++)
{
// if(!c && i)
// break;
cur = perint[i] * b + c;
t.perint[i] = cur % maxint;
c = cur / maxint;
// cout << "mul " << cur << " " << c << endl;
}
return t;
}
bigint & operator/(int & b)
{
// cout << "div " << b << endl;
// cout << "this " << *this << endl;
int c = 0,cur,s;
bigint t;
for(int i = maxnum - 1;i >=0 ;i--)
if(perint[i])
{
s = i;
break;
}
for(int i = s;i >=0 ;i--)
{
cur = c * maxint + perint[i];
t.perint[i] = cur / b;
// cout << "t " << t.perint[i] << endl;
c = cur % b;
// cout << "div " << cur / b << " " << c << endl;
}
// cout << t << endl;
return t;
}
friend ostream & operator<<(ostream &out,bigint b)
{
int s;
for(int i = maxnum - 1;i >=0 ;i--)
if(b.perint[i])
{
s = i;
break;
}
out << b.perint[s];
for(int i = s - 1;i >= 0;i--)
if(b.perint[i])
out << setfill('0') << setw(4) << b.perint[i];
return out;
}
};
bigint train[max];
int main()
{
int a,b,r;
train[0].perint[0] = 1;
train[1].perint[0] = 1;
train[2].perint[0] = 2;
// cout << train[0] << endl;
cout << train[1] << endl;
cout << train[2] << endl;
for(int i = 3;i < max;i++)
{
{
int a,b,r;
train[0].perint[0] = 1;
train[1].perint[0] = 1;
train[2].perint[0] = 2;
// cout << train[0] << endl;
cout << train[1] << endl;
cout << train[2] << endl;
for(int i = 3;i < max;i++)
{
a = 4*i-2;
b = i + 1;
train[i] = train[i-1] * a;
train[i] = train[i] / b;
cout << train[i] << endl;
}
while(cin >> r)
{
cout << train[r] << endl;
}
return 0;
}
b = i + 1;
train[i] = train[i-1] * a;
train[i] = train[i] / b;
cout << train[i] << endl;
}
while(cin >> r)
{
cout << train[r] << endl;
}
return 0;
}
//AC打表
#include <iostream>
#define maxn 100
#define maxn 100
using namespace std;
string tab[maxn] = {
"1",
"2",
"5",
"14",
"42",
"132",
"429",
"1430",
"4862",
"16796",
"58786",
"208012",
"742900",
"2674440",
"9694845",
"35357670",
"129644790",
"477638700",
"1767263190",
"6564120420",
"24466267020",
"91482563640",
"343059613650",
"1289904147324",
"4861946401452",
"18367353072152",
"69533550916004",
"263747951750360",
"1002242216651368",
"3814986502092304",
"14544636039226909",
"55534064877048198",
"212336130412243110",
"812944042149730764",
"3116285494907301262",
"11959798385860453492",
"45950804324621742364",
"176733862787006701400",
"680425371729975800390",
"2622127042276492108820",
"10113918591637898134020",
"39044429911904443959240",
"150853479205085351660700",
"583300119592996693088040",
"2257117854077248073253720",
"8740328711533173390046320",
"33868773757191046886429490",
"131327898242169365477991900",
"509552245179617138054608572",
"1978261657756160653623774456",
"7684785670514316385230816156",
"29869166945772625950142417512",
"116157871455782434250553845880",
"451959718027953471447609509424",
"1759414616608818870992479875972",
"6852456927844873497549658464312",
"26700952856774851904245220912664",
"104088460289122304033498318812080",
"405944995127576985730643443367112",
"1583850964596120042686772779038896",
"6182127958584855650487080847216336",
"24139737743045626825711458546273312",
"94295850558771979787935384946380125",
"368479169875816659479009042713546950",
"1440418573150919668872489894243865350",
"5632681584560312734993915705849145100",
"22033725021956517463358552614056949950",
"86218923998960285726185640663701108500",
"337485502510215975556783793455058624700",
"1321422108420282270489942177190229544600",
"5175569924646105559418940193995065716350",
"20276890389709399862928998568254641025700",
"79463489365077377841208237632349268884500",
"311496878311103321137536291518809134027240",
"1221395654430378811828760722007962130791020",
"4790408930363303911328386208394864461024520",
"18793142726809884575211361279087545193250040",
"73745243611532458459690151854647329239335600",
"289450081175264899454283846029490767264392230",
"1136359577947336271931632877004667456667613940",
"4462290049988320482463241297506133183499654740",
"17526585015616776834735140517915655636396234280",
"68854441132780194707888052034668647142985206100",
"270557451039395118028642463289168566420671280440",
"1063353702922273835973036658043476458723103404520",
"4180080073556524734514695828170907458428751314320",
"16435314834665426797069144960762886143367590394940",
"64633260585762914370496637486146181462681535261000",
"254224158304000796523953440778841647086547372026600",
"1000134600800354781929399250536541864362461089950800",
"3935312233584004685417853572763349509774031680023800",
"15487357822491889407128326963778343232013931127835600",
"60960876535340415751462563580829648891969728907438000",
"239993345518077005168915776623476723006280827488229600",
"944973797977428207852605870454939596837230758234904050",
"3721443204405954385563870541379246659709506697378694300",
"14657929356129575437016877846657032761712954950899755100",
"57743358069601357782187700608042856334020731624756611000",
"227508830794229349661819540395688853956041682601541047340",
"896519947090131496687170070074100632420837521538745909320",
};
"1",
"2",
"5",
"14",
"42",
"132",
"429",
"1430",
"4862",
"16796",
"58786",
"208012",
"742900",
"2674440",
"9694845",
"35357670",
"129644790",
"477638700",
"1767263190",
"6564120420",
"24466267020",
"91482563640",
"343059613650",
"1289904147324",
"4861946401452",
"18367353072152",
"69533550916004",
"263747951750360",
"1002242216651368",
"3814986502092304",
"14544636039226909",
"55534064877048198",
"212336130412243110",
"812944042149730764",
"3116285494907301262",
"11959798385860453492",
"45950804324621742364",
"176733862787006701400",
"680425371729975800390",
"2622127042276492108820",
"10113918591637898134020",
"39044429911904443959240",
"150853479205085351660700",
"583300119592996693088040",
"2257117854077248073253720",
"8740328711533173390046320",
"33868773757191046886429490",
"131327898242169365477991900",
"509552245179617138054608572",
"1978261657756160653623774456",
"7684785670514316385230816156",
"29869166945772625950142417512",
"116157871455782434250553845880",
"451959718027953471447609509424",
"1759414616608818870992479875972",
"6852456927844873497549658464312",
"26700952856774851904245220912664",
"104088460289122304033498318812080",
"405944995127576985730643443367112",
"1583850964596120042686772779038896",
"6182127958584855650487080847216336",
"24139737743045626825711458546273312",
"94295850558771979787935384946380125",
"368479169875816659479009042713546950",
"1440418573150919668872489894243865350",
"5632681584560312734993915705849145100",
"22033725021956517463358552614056949950",
"86218923998960285726185640663701108500",
"337485502510215975556783793455058624700",
"1321422108420282270489942177190229544600",
"5175569924646105559418940193995065716350",
"20276890389709399862928998568254641025700",
"79463489365077377841208237632349268884500",
"311496878311103321137536291518809134027240",
"1221395654430378811828760722007962130791020",
"4790408930363303911328386208394864461024520",
"18793142726809884575211361279087545193250040",
"73745243611532458459690151854647329239335600",
"289450081175264899454283846029490767264392230",
"1136359577947336271931632877004667456667613940",
"4462290049988320482463241297506133183499654740",
"17526585015616776834735140517915655636396234280",
"68854441132780194707888052034668647142985206100",
"270557451039395118028642463289168566420671280440",
"1063353702922273835973036658043476458723103404520",
"4180080073556524734514695828170907458428751314320",
"16435314834665426797069144960762886143367590394940",
"64633260585762914370496637486146181462681535261000",
"254224158304000796523953440778841647086547372026600",
"1000134600800354781929399250536541864362461089950800",
"3935312233584004685417853572763349509774031680023800",
"15487357822491889407128326963778343232013931127835600",
"60960876535340415751462563580829648891969728907438000",
"239993345518077005168915776623476723006280827488229600",
"944973797977428207852605870454939596837230758234904050",
"3721443204405954385563870541379246659709506697378694300",
"14657929356129575437016877846657032761712954950899755100",
"57743358069601357782187700608042856334020731624756611000",
"227508830794229349661819540395688853956041682601541047340",
"896519947090131496687170070074100632420837521538745909320",
};
int main()
{
int r;
while(cin >> r)
{
cout << tab[r-1] << endl;
}
return 0;
}
----------------------------------------------------------------------------------
{
int r;
while(cin >> r)
{
cout << tab[r-1] << endl;
}
return 0;
}
----------------------------------------------------------------------------------
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