/* File: fibo.c * * Purpose: Try to compute n Fibonacci numbers. * * Compile: gcc -g -Wall -o fibo fibo.c * Run: ./fibo * * Input: none * Output: A list of Fibonacci numbers * */ #include #include #include void Usage(char prog_name[]); int main(int argc, char* argv[]) { int n, i; long long* fibo; if (argc != 2) Usage(argv[0]); n = strtol(argv[1], NULL, 10); fibo = malloc(n*sizeof(long long)); fibo[0] = fibo[1] = 1; for (i = 2; i < n; i++) fibo[i] = fibo[i-1] + fibo[i-2]; printf("The first n Fibonacci numbers:\n"); for (i = 0; i < n; i++) printf("%d\t%lld\n", i, fibo[i]); free(fibo); return 0; } /* main */ void Usage(char prog_name[]) { fprintf(stderr, "usage: %s \n", prog_name); exit(0); } /* Usage */