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UVA120题:煎饼(STL+选择排序)

代码

下面是完整的代码

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

int main(){
vector<int> v,p,ans;
int n;string s;
while(getline(cin,s)){
n=0;v.clear();p.clear();ans.clear();
int sum=0;
for(int i=0;i<s.length();i++){
if(s[i]==' '){
if(sum){
p.push_back(sum);
v.push_back(sum);
sum=0;
n++;
}
continue;
} else
sum=sum*10+s[i]-'0';
}
if(sum){
p.push_back(sum);
v.push_back(sum);
sum=0;
n++;
}
sort(p.begin(),p.end());
for(int i=n-1;i>=0;i--){
if(p[i]==v[i])
continue;
else{
int j;
for(j=0;j<n&&v[j]!=p[i];j++);
if(j==0){
reverse(v.begin(),v.begin()+i+1);
ans.push_back(n-i);
}
else{
reverse(v.begin(),v.begin()+j+1);
ans.push_back(n-j);
reverse(v.begin(),v.begin()+i+1);
ans.push_back(n-i);
}
}
}
ans.push_back(0);
cout << s << endl;
for(int i=0;i<ans.size();i++){
if(i)
cout << ' ';
cout << ans[i];
}
cout << endl;
}
return 0;
}