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#include <stdio.h> #include <unistd.h> #include <stdlib.h> int main(int argc, char **argv) { int start, end; int *field; int input; int num; int n; int max; max = 1 << 31; start = atoi(argv[1]) ; end = atoi(argv[2]) ; field = (int *)malloc(sizeof(int) * 1000000); memset((void *)field, 0x00, sizeof(int)*1000000); for (n = start; n < end; n++) { input = n; num = 0; while(input != 1) { if ((input & max)) break; if ((input & 1)) { input = 3*input+1; } else input = input >> 1; num++; printf("%d ", input); } printf("\n=======\n\n"); printf("%d %d\n", n, num); } printf("\n"); } |
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