79 lines
1.4 KiB
C
79 lines
1.4 KiB
C
#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#define INPUT "../inputs/input-day2"
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int
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first()
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{
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static char buf[256];
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static char cmd[256];
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static int operand;
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int hpos = 0;
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int depth = 0;
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FILE *f = fopen(INPUT, "r");
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while(fgets(buf, 256, f)) {
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sscanf(buf, "%s %d\n", cmd, &operand);
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if(strcmp(cmd, "forward") == 0) {
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hpos += operand;
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} else if(strcmp(cmd, "up") == 0) {
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depth -= operand;
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} else if(strcmp(cmd, "down") == 0) {
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depth += operand;
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}
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}
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fclose(f);
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printf("depth: %d hpos: %d\n", depth, hpos);
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printf("result: %d\n", hpos * depth);
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return 0;
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}
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int
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second()
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{
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static char buf[256];
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static char cmd[256];
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static int operand;
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int hpos = 0;
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int depth = 0;
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int aim = 0;
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FILE *f = fopen(INPUT, "r");
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while(fgets(buf, 256, f)) {
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sscanf(buf, "%s %d\n", cmd, &operand);
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if(strcmp(cmd, "forward") == 0) {
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hpos += operand;
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depth += (aim * operand);
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} else if(strcmp(cmd, "up") == 0) {
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aim -= operand;
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} else if(strcmp(cmd, "down") == 0) {
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aim += operand;
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}
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}
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fclose(f);
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printf("aim: %d depth: %d hpos: %d\n", aim, depth, hpos);
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printf("result: %d\n", hpos * depth);
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return 0;
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}
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int
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main()
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{
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first();
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second();
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return 0;
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} |