1.#includeint main(){ int i,sum=0;for(i=1;iint main(){ int i,sum=0;for(i=1;iint main(){ int i;printf("被7整除:\n");for(i=1;iint main(){ int i;double sum=0,j=1;for(i=1;i#include int fun1(int num)//求1—num范围内所有奇数的和{ int i; int sum = 0; for (i = 1; i0){ if (j == 1) {
sum += tmp;
j--; } else
{
tmp *= j;
j--;
}} }return sum;}main(){ printf("1-100内奇数的和是：%d\n", fun1(100)); printf("1-100内偶数的和是：%d\n", fun2(100)); fun3(300); printf("1-10阶乘的和是：%d\n", fun4(10));}
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