Parse integers Sergey Svistunov

Compute the sum of integers read from STDIN as fast as possible.

Input: 50 000 000 lines, each containing one integer in the range [0; 2147483647].

629871117
2024562523
1372689083
1021777120
2111176472

Output: The uint64 sum of all numbers, printed as a decimal string.

Note: Integer overflow is expected – use a 64-bit accumulator.

Back to listApr 27, 2026 15:22Victor MerckléVictor MerckléError
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Run Statistics
#DateScoreWall TimeCPU UserCPU SystemMemoryError
1Apr 27, 2026 15:22078,265,615060,922,0002,527,232Exit with code 1: probe_v=input_size_1 stdin_regular=1 st_size=524128977 probe_v=input_size_1 stdin_regular=1 st_size=524128977 bytes_read=524128977 read_calls=501 eof_seen=1 elapsed_ms=58 first_read_ms=0 max_read_ms=0 mb_per_s_x1000=8618074 deadline_e...stderr