Then you should approach nice looking people who are leaving restaurants and are carrying leftover food, and ask them nicely if you can have their leftovers because you’re hungry. Someone did that to me before and I was happy to give them my bag of leftover food.

If you’re a student, you have access to paper and pens, possibly a marker. Literally make a sign that says “Need Help. Haven’t eaten in 45 hours” and stand at a sidewalk at a busy area and literally in less than 15 minutes a good Samaritan will buy you food at a nearby food cart or fast food restaurant.