const int switchPin=2;
const int counterPins[]={5,18,23,22,21,17,19};
int counter=0;
int switchState=HIGH;
int lastSwitchState=HIGH;
void setup()
{pinMode(switchPin,INPUT_PULLUP);
for(int i=0;i<7;i++){
  pinMode(counterPins[i],OUTPUT);
  }
  displayDigit(counter);
  }
void displayDigit(int digit){
  int data[10][7]={
    {0,0,0,0,0,0,1},
    {1,0,0,1,1,1,1},
    {0,0,1,0,0,1,0},
    {0,0,0,0,1,1,0},
    {1,0,0,1,1,0,0},
    {0,1,0,0,1,0,0},
    {0,1,0,0,0,0,0},
    {0,0,0,1,1,1,1},
    {0,0,0,0,0,0,0},
    {0,0,0,0,1,0,0}
    };
    for(int i=0;i<7;i++){
      digitalWrite(counterPins[i],data[digit][i]);
      }
}
void loop(){
  switchState=digitalRead(switchPin);
  if(switchState==LOW&&lastSwitchState==HIGH){
    counter=(counter+1)%10;
    displayDigit(counter);
    delay(1000);
  }
    lastSwitchState=switchState;
}