72 lines
1.2 KiB
C
72 lines
1.2 KiB
C
#include <stdio.h>
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void part1() {
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printf("Part 1\n");
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char ch = getchar();
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int visits[1000][1000];
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for(int i = 0; i < 1000; i++) {
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for(int j = 0; j < 1000; j++) {
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visits[i][j] = 0;
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}
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}
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int x = 0, y = 0, minx = 0, maxx = 0, miny = 0, maxy = 0;
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int inc = 0;
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printf("(%4d,%4d) (%4d:%4d,%4d:%4d)", x, y, minx, maxx, miny, maxy);
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while(ch) {
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visits[x+500][y+500]++;
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if(ch == '\n') { break; }
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switch(ch) {
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case '>':
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x++;
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break;
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case 'v':
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y--;
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break;
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case '<':
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x--;
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break;
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case '^':
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y++;
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break;
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}
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if(x > maxx) {
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maxx = x;
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}
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if(x < minx) {
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minx = x;
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}
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if(y > maxy) {
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maxy = y;
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}
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if(y < miny) {
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miny = y;
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}
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ch = getchar();
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}
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int result = 0;
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for(int i = 0; i < 1000; i++) {
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for(int j = 0; j < 1000; j++) {
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if(visits[i][j] > 0) {
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result++;
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}
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}
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}
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printf("%d houses\n", result);
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}
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void part2() {
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printf("Part 2\n");
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}
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int main(int argc, char **argv) {
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int doPart = 1;
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if(argc > 1) { doPart = argv[1][0] - '0'; }
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if(doPart == 1) {
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part1();
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} else {
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part2();
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}
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return 0;
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}
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