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#includeint main(void){ int i,m; printf("Enter a number:"); scanf("%d",&m); for(i=2;im/2&&m!=1) printf("%d is a prime number!\n",m); else printf("No!\n"); return 0;} 阅读全文
posted @ 2013-10-03 08:23
wuyanlong
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#includeint main(void){ int count,number; count=0; printf("Enter a number:"); scanf("%d",&number); if(number<0)number=-number; do{ number=number/10; count++; }while(number!=0); printf("It contains%d digits.\n",count); return 0;} 阅读全文
posted @ 2013-10-03 08:21
wuyanlong
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#includeint main(void){ int count,num; double grade,total; num=0; total=0; count=0; printf("Enter grades:"); scanf("%lf",&grade); while(grade>=0){ total=total+grade; num++; if(grade<60) count++; scanf("%lf",&grade); } if(num!=0){ printf("G... 阅读全文
posted @ 2013-10-03 08:18
wuyanlong
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#include#includeint main(void){ int denominator,flag; double item,pi; flag=1; denominator=1; item=1.0; pi=0; while(fabs(item)>=0.0001){ item=flag*1.0/denominator; pi=pi+item; flag=-flag; denominator=denominator+2; } pi=pi*4; printf("pi=%.4f\n",pi); r... 阅读全文
posted @ 2013-10-03 08:09
wuyanlong
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#includeint main(void){ double value1,value2; char op; printf("Type in an expression:"); scanf("%lf%c%lf",&value1,&op,&value2); if(op=='+') printf("=%.2f\n",value1+value2); else if(op=='-') printf("=%.2f\n",value1-value2); else if(o 阅读全文
posted @ 2013-10-03 08:06
wuyanlong
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#includeint main(void){ int blank,digit,other; char ch; int i; blank=digit=other=0; printf("Enter 10 characters:"); for(i=1;i<=10;i++){ ch=getchar(); switch(ch){ case' ': case'\n': blank++; break; case '0':case '1':case '2':case ... 阅读全文
posted @ 2013-10-03 08:05
wuyanlong
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#includeint main(void){ double value1,value2; char op; printf("Type in an expression:"); scanf("%lf%c%lf",&value1,&op,&value2); switch(op){ case'+': printf("=%.2f\n",value1+value2); break; case'-': printf("=%.2f\n",value1-value2); b 阅读全文
posted @ 2013-10-03 07:46
wuyanlong
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#includeint main(void){ int choice,i; double price; for(i=1;i<=5;i++){ printf("[1]Select crisps\n"); printf("[2]Select popcorn\n"); printf("[3]Select chocolate\n"); printf("[4]Select cola\n"); printf("[0]exit\n"); printf("Enter choice:") 阅读全文
posted @ 2013-10-03 07:45
wuyanlong
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#includeint main(void){ int digit,letter,other; char ch; int i; digit=letter=other=0; printf("Enter 10 characters:"); for(i=1;i='a'&&ch='A'&&ch='0'&&ch<='9') digit++; else other++; } printf("letter=%d,digit=%d,other=%d\n" 阅读全文
posted @ 2013-10-03 07:35
wuyanlong
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