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求int型正整数在内存中存储时1的个数C++

进制转换套路，求多少基数的进制转换都可以 #include<iostream> using namespace std; int main() { int n,ans=0; cin>>n; while(n>0) { ans...

2020-03-11

0 998

字串的连接最长路径查找C++

#include<iostream> #include<algorithm> #include<vector> #include<string> using namespace std; int main() { int n; vect...

2020-03-11

52 1777

句子逆序C++

#include<iostream> #include<stack> #include<string> using namespace std; int main() { string str; stack<string> s; ...

2020-03-11

9 1383

字符串反转C++

#include<iostream> #include<string> using namespace std; int main() { string s; cin >> s; for (int i=s.length()-1;i>=...

2020-03-11

8 890

数字颠倒C++

#include<iostream> using namespace std; int main() { int n; cin>>n; while(n>0) { cout<<n%10; n/=1...

2020-03-11

14 967

字符个数统计C++

哈希表 #include<iostream> #include<map> using namespace std; int main() { string s; map<char,int> m; while(cin>>s) ...

2020-03-11

0 786

提取不重复的整数C++

用哈希表，秒杀 #include<iostream> #include<vector> using namespace std; int main() { int num,n; vector<int> hash(10,0); cin>...

2020-03-10

41 4306

合并表记录C++

用map秒杀 #include<iostream> #include<map> using namespace std; int main() { int n; map<int,int> m; cin>>n; for(i...

2020-03-10

52 3386

取近似值c++

#include<iostream> using namespace std; int main() { double num; cin>>num; if(num-(int)num>=0.5) cout<<int(n...

2020-03-10

6 885

质数因子c++

#include<iostream> #include<cmath> using namespace std; int main() { long num; while(cin>>num) { //string s; ...

2020-03-10

3 1793