There are many different types and levels of college students' programming competitions, each of which has its own difficulty and gold content. The following are some well-known competitions, with different difficulty and gold content:

ACM-ICPC acm International Programming Competition for College Students: ACM-ICPC is a global programming competition for college students. The competition is very difficult, requiring participants to master basic knowledge of computer science such as algorithms and data structures. This competition is quite influential in the world and is known as the "Olympics" in the computer field.

Google Code Jam:Google Code Jam is a global programming competition initiated by Google, which requires participants to have good algorithm and programming skills. The competition is divided into several stages, and the final winner can get tens of thousands of dollars.

Topcoder Algorithm Competition: Topcoder is a global online programming competition platform. Its algorithm competition requires contestants to have superb algorithm and programming skills, and the competition is very difficult, but the winner can get the corresponding bonus and prestige.

Codeforces Competition: Codeforces is a global online programming competition platform, which is very difficult and requires contestants to have excellent algorithm and programming skills. The platform also provides generous bonuses and prestige for the winners.

In a word, these college students' programming competitions are difficult, which requires the contestants to have good algorithm and programming skills, as well as corresponding bonuses and prestige. Participating in these competitions can help college students to exercise their skills and improve their abilities, and at the same time, they can broaden their horizons and realize their shortcomings in the field of programming, thus further improving their level.