Why Does My Python Program Issue A Runtime Error- Nzec( Non-zero Exit Code)?

This is a CodeChef problem for the November challenge. I donot intend to cheat. My program works well for the test input provided. But the server generates a runtime NZEC error. Ca

Solution 1:

The problem description says that N can be 10**9. So a= [I]*N might require several gigabytes of memory. Your program probably terminates with MemoryError exception that leads to non-zero exit status (1).