68 lines
1.3 KiB
C++
68 lines
1.3 KiB
C++
#include "../include/useful_funcs.h"
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#include <algorithm>
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#include <cstddef>
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#include <errno.h>
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#include <fstream>
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#include <iostream>
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#include <sstream>
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#include <string>
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#include <vector>
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int main() {
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std::ifstream inputfile("input");
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std::string input;
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int res = 0;
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if (inputfile.is_open()) {
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std::string line;
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std::vector<std::string> num_s;
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std::vector<int> num;
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while (std::getline(inputfile, line)) {
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num_s = splitString(line);
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num.clear();
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CastStringVectorToIntVector(num_s, num);
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// decreasing
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bool safe = true;
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for (size_t i = 1; i < num.size(); ++i) {
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int diff = num[i - 1] - num[i];
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if (diff < 1 || diff > 3) {
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safe = false;
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break;
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}
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}
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if (safe) {
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res++;
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std::clog << line << std::endl;
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continue;
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}
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// increasing
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safe = true;
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for (size_t i = 1; i < num.size(); ++i) {
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int diff = num[i] - num[i - 1];
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if (diff < 1 || diff > 3) {
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safe = false;
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break;
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}
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}
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if (safe) {
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std::clog << line << std::endl;
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res++;
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}
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}
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inputfile.close();
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} else {
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std::cerr << "Unable to open file!" << std::endl;
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return ENOENT;
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}
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std::cout << res << std::endl;
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return 0;
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}
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