30 lines
717 B
C
30 lines
717 B
C
/* ex1-c:c: Advent2020 game, day 1/game 1
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*/
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#include <stdio.h>
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#include <stdlib.h>
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int main(ac, av)
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char **av;
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{
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int numbers[1000]; /* should do differently :
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* either read twice, either create list
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*/
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int n=0, i, j, n1, n2;
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while (scanf("%d", numbers+n) != EOF)
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n++;
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for (i=0; i<n; ++i) {
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n1=numbers[i];
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for (j=i+1; j<n; ++j) {
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n2=numbers[j];
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if (n1+n2 == 2020) {
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printf("%s : %d:%d %d:%d sum=%d mul=%d\n", *av,
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i, n1, j, n2, n1+n2, n1*n2);
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exit (0);
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}
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}
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}
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}
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