42:1: error: expected unqualified-id before 'for'

Hi everyboby
On code below I get 42:1: error: expected unqualified-id before ‘for’
42:15: error: ‘x’ does not name a type
42:21: error: ‘x’ does not name a type
Honestly I correct several bugs on this code but unable to correct those codes

Could somebody help me?

Thanks

// Project 4 - Interactive Traffic Lights
int carRed = 12; // assign the car lights
int carYellow = 11;
int carGreen = 10;
int pedRed = 9; // assign the pedestrian lights
int pedGreen = 8;
int button = 2; // button pin
int crossTime = 5000; // time alloyoud to cross
unsigned long changeTime; // time since button pressed
void setup() { //10
pinMode(carRed, OUTPUT);
pinMode(carYellow, OUTPUT);
pinMode(carGreen, OUTPUT);
pinMode(pedRed, OUTPUT);
pinMode(pedGreen, OUTPUT);
pinMode(button, INPUT); // button on pin 2
// turn on the green light
digitalWrite(carGreen, HIGH);
digitalWrite(pedRed, HIGH);
} //20
void loop() {
int state = digitalRead (button);
/* check if button is pressed and it is over 5 seconds since last button press */
if (state == HIGH && (millis() - changeTime) > 5000) {
} }
// Call the function to change the lights
// changeLights();
void changeLights() {
digitalWrite(carGreen, LOW); // green off
digitalWrite(carYellow, HIGH); // yellow on //30
delay(2000); // wait 2 seconds
digitalWrite(carYellow, LOW); // yellow off
digitalWrite(carRed, HIGH); // red on
delay(1000); // wait 1 second till its safe
digitalWrite(pedRed, LOW); // ped red off
digitalWrite(pedGreen, HIGH); // ped green on
delay(crossTime); // wait for preset time period
}
// flash the ped green
//40

for (int x=0; x<10; x++)
{
digitalWrite(pedGreen, HIGH);
delay(250);
digitalWrite(pedGreen, LOW);
delay(250);
}

// turn ped red on
digitalWrite(pedRed, HIGH);
delay(500);
digitalWrite(carYellow, HIGH); // yellow on
digitalWrite(carRed, LOW); // red off //50
delay(1000);
digitalWrite(carGreen, HIGH);
digitalWrite(carYellow, LOW); // yellow off\

// record the time since last change of lights
changeTime = millis();

// then return to the main program loop

Starting at "for (int x...." and all the way to the end, none of that code is within a function. All code (other than variable declarations, etc.) must be within a function.