#include<stdio.h>
int main()
{
int a, b;
char c;
scanf("%d%c%d", &a,&c, &b);
switch (c)
{
case '+':printf("%d+%d=%d",a,b, a + b); break;
case '-':printf("%d-%d=%d",a,b,a - b); break;
case '*':printf("%d*%d=%d", a, b, a * b); break;
case '/':printf("%d/%d=%d", a, b, a / b); break;
default;break;
}
return 0;
}
#include<stdio.h>
int main()
{
int x, x1, x2, x4, x6, x10;
int p, n;
x1 = 100000 * 0.1;
x2 = x1 + 100000 * 0.075;
x4 = x2 + 200000 * 0.05;
x6 = x4 + 200000 * 0.03;
x10 = x6 + 400000 * 0.015;
scanf("%d", &x);
n = x / 100000;
if (n > 10)
n = 10;
switch (n)
{
case 0: p = x * 0.1; break;
case 1: p = x1 + (x - 100000)*0.075; break;
case 2:
case 3: p = x2 + (x - 200000)*0.05; break;
case 4:
case 5: p = x4 + (x - 400000)*0.03; break;
case 6:
case 7:
case 8:
case 9: p = x6 + (x - 600000)*0.015; break;
case 10: p = x10 + (x - 1000000)*0.01; break;
}
printf("%d", p);
}
#include<stdio.h>
int main()
{
char c;
int letters = 0, spaces = 0, digits = 0, others = 0;
printf("请输入一串任意的字符:\n");
while ((c = getchar()) != '\n')
{
if ((c >= 'a'&&c <= 'z') || (c >= 'A'&&c <= 'Z'))
letters++;
else if (c >= '0'&&c <= '9')
digits++;
else if (c == ' ')
spaces++;
else
others++;
}
printf("字母有%d个,数字有%d个,空格有%d个,其他有%d个", letters, digits, spaces, others);
return 0;
}
#include<stdio.h>
int main()
{
int a, b, c;
int q = 0, w = 0;
float e = 0;
double sum = 0;
scanf("%d%d%d", &a, &b,&c);
for (int i = 1; i <= a; i++) {
q += i;
}
for (int i = 1; i <= b; i++) {
w += i * i;
}
for (int i = 1; i <= c; i++) {
e += 1.0 / i;
}
sum = q + w + e;
printf("%.2f\n", sum);
return 0;
}
#include<stdio.h>
int main()
{
float m, n, h, i, t, sum;
scanf("%f%f", &m, &n);
h = m / 2, sum = m;
for (i = 2; i <= n; i++) {
t = m / 2;
h = t / 2;
sum += 2 * t;
m = t;
}
printf("%.2f %.2f", h, sum);
return 0;
}
#include<stdio.h>
int main()
{
int m = 0, n = 0, i = 0, j = 0;
char a[100] = { 0 };
printf("输入需转换的十进制整数:m=");
scanf("%d", &m);
printf("欲转换成的进制数:n=");
scanf("%d", &n);
while (m != 0)
{
a[i] = m % n;
i++;
m = m / n;
}
printf("转换成的进制数为:");
for (j = i - 1; j >= 0; j--)
{
if (a[j] > 10)
printf("%c", a[j] + 'A' - 10);
else
printf("%d", a[j]);
}
printf("\n");
system("pause");
return 0;
}
#include<stdio.h>
int main()
{
int m, n;
while (~scanf("%d%d", &m, &n)) {
int x = 0;
int y = 0;
if (m > n) {
int t;
t = m;
m = n;
n = t;
}
for (int i = m; i <= n; i++) {
if (i % 2 == 0) {
x += i * i;
}
else if (i % 2 == 1) {
y += i * i*i;
}
}
printf("%d %d\n", x, y);
}
return 0;
}