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  • 大小:
    文件類型: .zip
    金幣: 2
    下載: 0 次
    發布日期: 2021-05-09
  • 語言: C/C++
  • 標簽: 人工智能??

資源簡介

資源截圖

代碼片段和文件信息

#include?
#include?
#include?
#include?
using?namespace?std;



void?constructiveMethod(?int?n?);
bool?conflicting(const?int?q[]int?n?int?i);
void?constructNext(int?q[]?int?n?int?i);
void?repairApproach(?int?n?);
bool?repair(?int?q[]?int?n?int&?maxConf?);
int?getConfNum(const?int?q[]?int?n?int?i?);
void?print(const?int?q[]?int?n);

int?main()
{
srand(time(0));
int?N?=?4;
const?int?REP_NUM?=?10;
long?start?stop;

cout< cout< while?(N<=32)
{
cout<<“N?=?“< start?=?clock();
// time(&start);
for?(?int?i=0;?i {
constructiveMethod(N);
}
//time(&stop);
stop?=?clock();
cout< <<(double)(stop-start)/REP_NUM<<“MS“;

start?=?clock();
// time(&start);
for?(?int?i=0;?i {
repairApproach(N);
}
//time(&stop);
stop?=?clock();
cout< <<(double)(stop-start)/REP_NUM<<“MS“;
N++;
cout< }
return?0;
}

//constructive?method?to?solve?n?queens?puzzle
bool?g_found;
void?constructiveMethod(?int?n?)
{
g_found?=?false;
int*?q?=?new?int[n];
constructNext(qn0);
delete?[]q;
}


//construct?ith?queen‘s?position
void?constructNext(?int?q[]?int?n?int?i?)
{
if?(?g_found?)
return;
if?(?i?==?n?)
{
// print(qn);
g_found?=?true;
return;
}
for?(?int?j=0;?j {
q[i]?=?j;
if?(?!conflicting(qni)?)
{
constructNext(qni+1);
}
}
}

//test?if?q[i]?conflicts?with?q[0..i-1]
bool?conflicting(?const?int?q[]int?n?int?i?)
{
for?(?int?k=0;?k {
if?(?q[k]==q[i]?)
return?true;
if?(?q[k]-q[i]?==?k-i?)
return?true;
if?(?q[k]-q[i]?==?i-k?)
return?true;
}
return?false;
}


void?repairApproach(?int?n?)
{
int*?q?=?new?int[n];
int?maxConf?=?n;
while?(?maxConf!=0?)
{
for?(?int?i=0;?i {
q[i]?=?rand()%n;
}
bool?repaired?=?true;
while?(?repaired?)
{
repaired?=?repair(qnmaxConf);
}
}
// print(qn);
delete?[]q;
}

bool?repair(?int?q[]?int?n?int&?maxConf?)
{
maxConf?=?-1;
bool?repaired?=?false;
for?(?int?i=0;?i {
int?orgVal?=?q[i];
int?minVal?=?q[i];
int?minConf?=?n;
for?(?int?j=0;?j {
q[i]?=?j;
int?confNum?=?getConfNum(qni);
if?(?confNum? {
minConf?=?confNum;
minVal?=?j;
}
}
q[i]?=?minVal;
if?(?orgVal?!=?minVal?)
{
repaired?=?true;
}
if?(?minConf?>?maxConf?)
maxConf?=?minConf;
}
return?repaired;
}

//get?number?of?columns?that?conflct?with?column?i
int?getConfNum(?const?int?q[]?int?n?int?i?)
{
int?num?=?0;
for?(?int?j=0;?j {
if?(?j==i?)
continue;
if?(?q[j]==q[i]?)
num++;
else?if?(?q[j]-q[i]?==?j-i?)
num++;
else?if?(?q[j]-q[i]?==?i-j?)
num++;
}
re

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2009-03-06?18:53??nQueens\
?????文件????????3131??2008-05-15?19:58??nQueens\nQueens.cpp
?????文件?????1626435??2009-03-06?18:19??nQueens\N皇后問題.pdf

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