c++作业4

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1、年龄几何

<pre name="code" class="cpp">#include<stdio.h>#include<iostream>  using namespace std;int main(){int a, n, i, s;for (a = 1; a <= 4; a++)  for (n = 1; n <= 6; n++)if (n * 4 + a * 6 == 26 && n*(n + a)*(n + a + a)*(n + a + a + a) == 880){cout << n; for (i = 1; i<20; i++){s = n + a*i;cout << "、" << s;  }cout << endl;}else{cout << endl;}system("pause");return 0;}

2、输出星型图形

#include<iostream>using namespace std;int main(){int i, j, n = 6;for (j = 1; j <= n - 1; j++)cout << " ";cout << "*" << endl;for (i = 2; i <= n - 1; i++){for (j = 1; j <= n - i; j++)cout << " ";cout << "*";for (j = 1; j <= 2 * i - 3; j++)cout << " ";cout << "*" << endl;}for (j = 1; j <= 2 * n - 1; j++)cout << "*";cout << endl;system("pause");return 0;}

3、三色球

#include<stdio.h>#include<iostream>using namespace std;int main(){int n=1,i, j, k;for (i = 0; i <= 3;i++)for (j = 0; j <= 3;j++)for (k = 0; k <= 6;k++)if (i + j + k == 8)cout << n++ << ":红球" << i << "个:白球" << j << "个:黑球" << k << ":个\n";system("pause");return 0;}

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