int8_t mypins[] = {5,6,7,8,9,10,11};
int counterdata[] = {B01111110,
                      B00110000,
                      B01101101,
                      B01111001,
                      B00110011,
                      B01011011,
                      B01011111,
                      B01110000,
                      B01111111,
                      B01111011,
                      };



int8_t showdigits(int segments[]){

}

void setup() {
  //Serial.begin(115200); 
  for(int8_t i = 0; i<=7; i++){
  pinMode(mypins[i], OUTPUT);
  }
}

void loop() {
  for(int8_t i = 0; i<10 ; i++){
    for(int8_t i = 0; i<7 ; i++){
    digitalWrite(mypins[i], counterdata[i]); ...
  } ...
  delay(500);
  }

}