一、字符串平均重量
// we have defined the necessary header files here for this problem.
// If additional header files are needed in your program, please import here.
int main()
{
// please define the C++ input here. For example: int a,b; cin>>a>>b;;
// please finish the function body here.
// please define the C++ output here. For example:cout<<____<>str){
strNum++;
total+=str.size();
}
printf("%.2f",total/strNum);
return 0;
}
二、solo习惯
// we have defined the necessary header files here for this problem.
// If additional header files are needed in your program, please import here.
int main()
{
// please define the C++ input here. For example: int a,b; cin>>a>>b;;
// please finish the function body here.
// please define the C++ output here. For example:cout<<____<='A'&&str[i]<='Z'){
str[i]=str[i]+('a'-'A');
}
}
cout<
三、计算字符串重新排列数
完成67%
#include
#include
#include
// we have defined the necessary header files here FOR this problem.
// IF additional header files are needed IN your program, please IMPORT here.
int main()
{
// please define the C input here. FOR EXAMPLE: int n; scanf("%d",&n);
// please finish the FUNCTION body here.
// please define the C output here. FOR EXAMPLE: printf("%d",a);
char num[9];
cin>>num;
int n = strlen(num);
int result=0;
sort(num,num+n);
do
{
//for(int i=0;i
完成97%
//#include
//#include
// we have defined the necessary header files here for this problem.
// If additional header files are needed in your program, please import here.
#include
using namespace std;
void AllPermutation(string perm, int from, int to);
int num=0;
set sets;
int main()
{
// please define the C++ input here. For example: int a,b; cin>>a>>b;;
// please finish the function body here.
// please define the C++ output here. For example:cout<<____< to)
return;
if(from == to) //打印当前排列
{
static int count = 1; //局部静态变量，用来统计全排列的个数
num=count;
count++;
sets.insert(perm);
//cout << count++ << ":" << perm;
//cout << endl;
}
if(from < to) //用递归实现全排列
{
for(int j = from; j <= to; j++) //第j个字符分别与它后面的字符交换就能得到新的排列
{
swap(perm[j], perm[from]);
//cout<<0;
AllPermutation(perm, from + 1, to);
//cout<<1;
swap(perm[j], perm[from]);
//cout<<2;
}
}
}
100%
// we have defined the necessary header files here for this problem.
// If additional header files are needed in your program, please import here.
#include
#include
using namespace std;
int main()
{
// please define the C++ input here. For example: int a,b; cin>>a>>b;;
// please finish the function body here.
// please define the C++ output here. For example:cout<<____<
