とあるツイート をうんうん考えて結局題意からそれていたので供養．
もちろんめちゃくちゃ warning が出る．
main.c
main(c, v) char **v; { return --c ? v[c] = atoi(v[c]) + v[c+1], main(c, v) : printf("%i\n", v[c+1]); }
$ gcc main.c
$ ./a.out 1 2 3 4 5 6 7 8 9 10
55
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