摘要： #includeint main(void){ int i,n; double x,y; printf("Enter n:");scanf("%d",&n); for(i=1;i<=n;i++) { printf("输入 x:"); scanf("%Lf",&x); if(x<=0) { printf("输入错误，重新输入"); } else if(x<=50) { y=0.53*x; } else { y=26.5+0.58*(x-50); } printf( 阅读全文

摘要： #includeint main(void){ int num1,num2,a,b,c; double d,e; printf("Enter num1,num2"); scanf("%d%d",&num1,&num2); a=num1+num2; b=num1-num2; c=num1*num2; d=num1/num2; e=num1%num2; printf("Enter 和=%d 差=%d 积=%d 商=%.2f 余数=%.2f",a,b,c,d,e); return 0;} 阅读全文

摘要： #includeint main(void){ int year; printf("输入年份:"); scanf("%d",&year);while(year!=-1){ if((year%4==0&&year%100!=0)||(year%400==0)) { printf("这一年是 闰年\n"); printf("输入年份:"); scanf("%d",&year); } else{ printf("这一年不是闰年\n"); printf 阅读全文

摘要： #include int main(void){int choice, i;double price;for(i = 1; i <= 5; i++){printf("[1] apples\n");printf("[2] pears\n");printf("[3] oranges\n");printf("[4] grapes\n");printf("[0] Exit\n");scanf("%d", &choice);if(choice == 0)break;els 阅读全文

摘要： #include#includeint main(void){int year;double loan,money,mypow,rate;scanf("%lf%lf",&loan,&rate);printf(" year money\n");for(year=5;year<=30;year++){mypow=pow(1+rate,12*year);money=loan*rate*mypow/(mypow-1);printf("year=%d money=%.of\n",year,money);}return 0; 阅读全文

摘要： #includeint main(void){int i,n;double sum;double fact(int n);scanf("%d",&n);sum=0;for(i=0;i<=n;i++){sum=sum+fact(i);}printf("sum=%.0f\n",sum);return 0;}double fact(int n){int i;double product;product=1;for(i=1;i<=n;i++)product=product*i;return product;} 阅读全文

摘要： #includevoid main(){char a;int b=0,c=0,d=0,e=0;while((a=getchar())!='\n'){if(a>='a'&&a='A'&&a='0'&&a<='9') c++;else if(a==13||a==32) d++;else e++;}printf("字母个数为%d\n数字个数为%d\n空格或回车个数为%d\n其余为%d\n",b,c,d,e);} 阅读全文

摘要： #includeint main(){char a;printf("输入五级制成绩:\n");scanf("%ch",&a);switch(a){case'A':printf("90~100\n");break;case'B':printf("80~89\n");break;case'C':printf("70~79\n");break;case'D':printf("60~69\n");break;ca 阅读全文

摘要： #include int main(void) { char c; int blank, digit, i, letter, other; blank = digit = letter = other = 0; for(i = 1; i <= 15; i++){ c = getchar(); } printf("letter = %d, blank = %d, digit = %d, other = %d\n", letter, blank, digit, other); } 阅读全文

摘要： #includevoid main(){int m,n,i,test,sum,count;printf("请输入学生数:\n");scanf("%d",&n);count=0;sum=0;for(i=0;i=60)count++;}printf("avr=%.2f\n",sum*1.0/n);printf("pass=%d\n",count);printf("fail=%d\n",n-count);} 阅读全文