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#include /*饶了我吧*/int main(void){ int i, m, n; double sum; scanf_s("%d",&m); scanf_s("%d",&n); sum = 0; for(i = m; i <= n; i++) /*计算nm之间的数*/ sum = sum + i * i + 1.0 / i; printf("sum = %.6f\n", sum); return 0; } 阅读全文
posted @ 2013-10-18 17:45
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#includeint main(void){ int n,i; double x,y; scanf_s("%d",&n); scanf_s("%lf",&x); y=1; for(i=1;i<=n;i++){ y=y*x; } printf("%.2f\n",y); return 0;}这个真没加的啊 阅读全文
posted @ 2013-10-18 17:03
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#includeint main(void){ int choice,i; double price; for(i=1;i<=5;i++){ printf("[1] Select apples \n"); printf("[2] Select pears \n"); printf("[3] Select oranges \n"); printf("[4] Select grapes \n"); printf("[0] exit \n"); printf("Enter choice 阅读全文
posted @ 2013-10-18 16:45
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#includeint main(void){ char ch; printf("Input Grade: "); ch=getchar(); switch(ch){ case 'A': printf("%c 90-100\n",ch); break; case 'B': printf("%c 80-89\n",ch); break; case 'C': printf("%c 70-79\n",ch); ... 阅读全文
posted @ 2013-10-18 16:24
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#includeint main(void){ int i,n,year; printf("Enter n:"); scanf_s("%d",&n); for(i=1;i<=n;i++){ printf("Enter year:"); scanf_s("%d",&year); if((year%4==0&&year%100!=0)||(year%400==0)){ printf("这是闰年"); } else{ printf("这不是闰年" 阅读全文
posted @ 2013-10-18 15:44
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