1 //编程一百题 2 //1.4抓交通肇事犯 3 #include <iostream> 4 using namespace std; 5 int num = 0; 6 int main() 7 { 8 for(int i=1;i<=9;i++) 9 { 10 for(int j=0;j<=9;j++) 11 { 12 if(i != j) 13 { 14 num = 1000*i+100*i+10*j+j; 15 } 16 for(int k=31;k<100;k++) 17 { 18 if(k*k == num) 19 { 20 cout<<num; 21 } 22 } 23 } 24 } 25 26 return 0; 27 }
1 //编程一百题 2 //1.5兔子产子问题 3 #include <iostream> 4 using namespace std; 5 int main() 6 { 7 int arr[30]; 8 arr[0] = arr[1] = 1; 9 cout<<"第"<<1<<"个月的兔子对数为:"<<arr[0]<<endl; 10 cout<<"第"<<2<<"个月的兔子对数为:"<<arr[1]<<endl; 11 for(int i=2;i<30;i++) 12 { 13 arr[i] = arr[i-1] + arr[i - 2]; 14 cout<<"第"<<i+1<<"个月的兔子对数为:"<<arr[i]<<endl; 15 } 16 17 return 0; 18 }
1 //编程一百题 2 //1.6牛顿迭代法求方程根 3 #include <iostream> 4 using namespace std; 5 #include <math.h> 6 int main() 7 { 8 double a,b,c,d,x0,x = 1.5,x1=0; 9 cout<<"请输入系数:"<<endl; 10 cin>>a>>b>>c>>d; 11 Flag: 12 x0 = x; 13 x1 = x0 - (a*x0*x0*x0+b*x0*x0+c*x0+d)/(3*a*x0*x0+2*b*x0+c); 14 x = x0 - x1; 15 if(fabs(x - x0)>0.00001) 16 { 17 goto Flag; 18 } 19 else 20 { 21 cout<<x; 22 } 23 return 0; 24 }
标签:arr,14,int,namespace,2023.4,x0,include,cout From: https://www.cnblogs.com/muzhaodi/p/17320267.html