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103 lines
2.7 KiB
103 lines
2.7 KiB
3 years ago
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#include <stdio.h>
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#include <stdbool.h>
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#include <string.h>
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#include <stdlib.h>
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#define ANSI_COLOR_RED "\x1b[31m"
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#define ANSI_COLOR_YELLOW "\x1b[33m"
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#define ANSI_COLOR_RESET "\x1b[0m"
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#define MAX(a, b) ((a) < (b) ? (b) : (a))
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#define MIN(a, b) ((a) < (b) ? (a) : (b))
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void printPaper( unsigned int width, unsigned int height, bool **paper ){
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for ( unsigned int y = 0; y < height; y++ ){
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printf("Line %i: ", y);
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for ( unsigned int x = 0; x < width; x++ ){
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if ( paper[x][y] == true ) printf("#");
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else printf(".");
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}
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printf("\n");
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}
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}
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bool** foldPaperX( unsigned int width, unsigned int height, unsigned int col, bool **paper){
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bool **newPaper=(bool**)malloc( col * sizeof(bool *));
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for(unsigned int x=0; x < col;x++) {
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newPaper[x]=(bool*)malloc( (height) *sizeof(bool));
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memset(newPaper[x], 0, sizeof(bool) * ( height ));
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}
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for ( unsigned int x = 1; x < width - col; x++ )
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for ( unsigned int y=0; y < height; y++ )
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newPaper[col - x][y] = paper[col - x][y] || paper[col + x][y];
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return newPaper;
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}
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bool** foldPaperY( unsigned int width, unsigned int height, unsigned int row, bool **paper){
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bool **newPaper=(bool**)malloc( (width) * sizeof(bool *));
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for(unsigned int x=0; x < width; x++) {
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newPaper[x]=(bool*)malloc( (row) *sizeof(bool));
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memset(newPaper[x], 0, sizeof(bool) * ( row ));
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}
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for ( unsigned int y=1; y < height - row; y++ )
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for ( unsigned int x = 0; x < width; x++ )
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newPaper[x][row - y] = ( paper[x][row - y] || paper[x][row + y] );
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return newPaper;
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}
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int main( int argc, char *argv[] ){
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if( argc == 2 ) {
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FILE *fp=fopen(argv[1], "r");
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unsigned int x=0,y=0,maxx=0,maxy=0;
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while ( fscanf( fp, "%i,%i\n",&x,&y )){
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maxx = MAX(maxx,x);
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maxy = MAX(maxy,y);
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}
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printf("Max x: %i Max y: %i\n", maxx, maxy);
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bool **paper=(bool**)malloc( (maxx+1) * sizeof(bool *));
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for(unsigned int i=0; i<=maxx;i++)
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{
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paper[i]=(bool*)malloc( (maxy+1) *sizeof(bool));
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memset(paper[i], 0, sizeof(bool) * ( maxy+1 ));
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}
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rewind(fp);
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while ( fscanf( fp, "%i,%i\n",&x,&y )){
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paper[x][y] = true;
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}
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printPaper( maxx+1, maxy+1, paper );
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printf("\n");
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char direction = '\0';
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unsigned int position = 0;
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while (!feof(fp) && fscanf(fp, "fold along %c=%i\n", &direction, &position)){
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printf("Trying to fold in %c direction at position %i\n", direction, position);
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if ( direction == 'x' ){
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paper = foldPaperX(maxx+1, maxy+1, position, paper);
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maxx = position - 1;
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printPaper( maxx + 1, maxy + 1, paper );
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} else {
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paper = foldPaperY(maxx+1, maxy+1, position, paper);
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maxy = position - 1;
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printPaper( maxx+1, maxy+1, paper );
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}
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}
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fclose(fp);
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return 0;
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} else {
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printf("You need to provide a file\n");
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return 1;
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}
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}
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