21 lines
457 B
C++
21 lines
457 B
C++
#include <iostream>
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#include <vector>
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class Solution {
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public:
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static int numPairsDivisibleBy60(const std::vector<int>& time) {
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int bucket[61]{0};
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for (const auto& i : time)
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++bucket[i % 60];
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int ret = bucket[0] * (bucket[0] - 1) / 2 + bucket[30] * (bucket[30] - 1) / 2;
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for (int i = 1; i < 30; ++i)
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ret += bucket[i] * bucket[60 - i];
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return ret;
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}
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};
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int main() {
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std::cout << Solution::numPairsDivisibleBy60({60,60,60});
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return 0;
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}
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