29 lines
598 B
C++
29 lines
598 B
C++
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#include <fstream>
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#include <climits>
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#include <iostream>
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#include <vector>
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int main() {
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std::ifstream infile("input.txt");
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std::vector<int> window { 0, 0, 0 };
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int curr = 0;
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unsigned int increases = 0;
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infile >> window[0];
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infile >> window[1];
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infile >> window[2];
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while (infile >> curr) {
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int prev_sum = window[0] + window[1] + window[2];
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int new_sum = window[1] + window[2] + curr;
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if (new_sum > prev_sum) ++increases;
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window = { window[1], window[2], curr };
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}
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std::cout << increases << std::endl;
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return 0;
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}
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