What is a negative outcome of unconstrained branching in flowcharts?

Unconstrained branching in flowcharts can result in "spaghetti code," which refers to code that is tangled and difficult to follow due to excessive and unpredictable jumps in control flow. When a program contains too many branches—such as if-else statements or goto statements without a clear and logical structure—it becomes challenging to trace the execution path. This lack of organization and clarity can make debugging, maintenance, and understanding of the code significantly harder.

Well-structured code, in contrast, has a clear flow that is easier for developers to read, comprehend, and modify. By imposing constraints on branching, programmers can create more linear and logically progressive flowcharts, which ultimately leads to more manageable and understandable code.