一‘求和
#include<iostream> using namespace std; int main() { const int N=10; int a[N],i,m=0,n=0; cout<<"请输入十个数:"; { cin>>a[i]; if(a[i]>0) m=m+a[i]; if(a[i]<0) n=n+a[i]; } cout<<"正数的和为:"<<m<<","<<"负数的和为:"<<n<<endl; return 0; }
二’字符串
#include<iostream> #include<cstdio> using namespace std; int main() { char str[50]; int i=0,m=0,n=0,j=0,k=0; cout<<"输入字符串:"; gets(str); while(str[i]!='\0') { if(str[i]>='0'&&str[i]<='9'){ m++;i++;} else if(str[i]>='A'&&str[i]<='Z') {n++;i++;} else if(str[i]>='a'&&str[i]<='z') {j++;i++;} else {k++;i++;} } cout<<"其中的数字个数为: "<<n<<"个"<<endl; cout<<"其中大写字母的个数为"<<m<<"个"<<endl; cout<<"其中小写字母的个数为"<<k<<"个"<<endl; cout<<"其中其他字符的个数为"<<j<<"个"<<endl; return 0; }
<pre class="cpp" name="code">#include<iostream> using namespace std; int main() { const int N=10; int a[N],b[N],i,m,n=0; cout<<"请输入十个数字:"<<endl; for(i=0;i<N;i++) { cin>>a[i]; } for(i=0;i<N;i++) { for(m=0;m<N;m++) { if(i==m) continue; if(a[i]==a[m]) break; if(m==N-1) { b[n]=a[i]; n++; } } } cout<<"其中不重复的数字为:"; for(i=0;i<n;n++) cout<<b[i]<<" "; cout<<endl; }
原文:http://blog.csdn.net/farcerose/article/details/51367978