105 lines
No EOL
2.3 KiB
C
105 lines
No EOL
2.3 KiB
C
#include <stdlib.h>
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#include <stdint.h>
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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 <sys/types.h>
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#include <unistd.h>
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#include <time.h>
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#include <limits.h>
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char input[] =
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{
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#embed "input.txt"
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,'\0' // null terminator
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};
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int width = 0;
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int height = 0;
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uint64_t result = 0;
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uint64_t parseNum(char* str){
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int i = 0;
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while(str[i] == ' '){
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i++;
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}
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uint64_t out = 0;
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while(str[i] != ' ' && str[i] != '\n'){
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//printf("%c", str[i]);
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out += str[i]-0x30;
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out *= 10;
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i++;
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}
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out /=10;
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return out;
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}
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int main(int argc, char *argv[]){
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clock_t start, end;
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start = clock();
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while(input[width] != '\n'){
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width++;
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}
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printf("width: %d\n", width);
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//parse ranges first
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int i = 0;
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int lines = 0;
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while(input[i+1] != 0){
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lines++;
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i+=(width+1);
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}
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char* symbols = input+(width+1)*(lines-1);
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printf("line count: %d\n", lines);
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printf("symbols:\n%s\n", symbols);
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printf("parsing the first number: %lu\n", parseNum(input+8));
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int parse_length = 1;
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uint64_t col_res;
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while(*symbols != 0){
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while(symbols[parse_length] == ' ' || symbols[parse_length] == '\n'){
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parse_length++;
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}
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parse_length--;
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printf("parsing %d long numbers\n", parse_length);
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if(*symbols == '*'){
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col_res = 1;
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printf("multiplying....\n");
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for(int i = 1; i<lines; i++){
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uint64_t num = parseNum(symbols-(i*(width+1)));
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printf("parsed %lu\n", num);
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col_res *= num;
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}
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}else if(*symbols == '+'){
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col_res = 0;
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printf("adding....\n");
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for(int i = 1; i<lines; i++){
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uint64_t num = parseNum(symbols-(i*(width+1)));
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printf("parsed %lu\n", num);
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col_res += num;
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}
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}
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printf("total: %lu\n", col_res);
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result += col_res;
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symbols += parse_length+1;
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parse_length = 1;
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}
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end = clock();
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printf("count: %lu\n", result);
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clock_t ticks_taken = end - start;
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double time_taken = ((double)ticks_taken)/CLOCKS_PER_SEC;
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printf("time take: %f ticks\n", time_taken);
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printf("CLOCKS_PER_SEC: %ld\n", CLOCKS_PER_SEC);
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exit(1);
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} |