拾參

1.練習會考

進階題：函數反序排列數字


#include <stdio.h>
int main()
{
int a,b=0,sum=0;
scanf("%d",&a);
while(a)
{
b=a%10;
sum=(b+sum)*10;
a=a/10;
}
printf("%d\n",sum/10);
}

進階題：2進位轉10進位

#include <stdio.h>

int main( )

{

  int n;

  scanf("%d",&n);

  int n1=n%10;

  int n2=(n/10)%10;

  int n3=(n/100)%10;

  int n4=(n/1000)%10;

  int ans=n1*1+n2*2+n3*4+n4*8;

  printf("%d\n",ans);

}

2.憤怒鳥

PImage bird,slingshot_0,slingshot_1;
void setup()
{
   size(1680,720);
   bird = loadImage("bird.png");
   slingshot_0 = loadImage("slingshot_0.png");
   slingshot_1 = loadImage("slingshot_1.png");
   imageMode(CENTER);
}

float birdX = 195,birdY = 590,oldX,oldY,vx = 0,vy = 0,SSX = 200,SSY = 650;
boolean bMoving = false,bDropping = false;

void draw()
{
  background(255);
  if(bMoving) line(mouseX-15,mouseY+15,oldX+20,oldY+5);
  image(slingshot_0,SSX,SSY,60,168);
  image(bird,birdX,birdY,50,50);
  image(slingshot_1,SSX,SSY,60,168);
  if(bMoving) line(mouseX-15,mouseY+15,oldX-10,oldY);
  strokeWeight(5);
  birdX += vx;
  birdY += vy;
  //if (birdX > 1055 || birdX < 25) vx = -vx;
  //if (birdY > 695  || birdY < 25) vy = -vy;
  if (bDropping)
  {
      vy += 0.1;
      if (birdY > 695)
      {
        vy = -vy;
        vy += 1.5;
        vx -= 0.25;
        if (vy > 0) vy = 0;
        if (vx < 0) vx = 0;
      }
     
  }
}

void mousePressed()
{
  if (dist(mouseX,mouseY,birdX,birdY) < 50)
  {
    bMoving = true;
    oldX = birdX;
    oldY = birdY;
  }
}

void mouseReleased()
{
  bMoving = false;
  bDropping = true;
  if (dist(mouseX,mouseY,birdX,birdY) < 50)
  {
    vx = (oldX - mouseX)/8;
    vy = (oldY - mouseY)/8;
  }
}

void mouseDragged()
{
  if (bMoving)
  {
    birdX = mouseX;
    birdY = mouseY;
  }
}