28 lines
619 B
C++
28 lines
619 B
C++
#include <vector>
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#include <cstdio>
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class Solution {
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public:
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static std::vector<std::vector<int>> construct2DArray(std::vector<int>& original, int m, int n) {
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if (m * n != original.size()) return {};
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std::vector<std::vector<int>> ret;
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ret.reserve(m);
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for (int i = 0; i < m; ++i) {
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ret.emplace_back(original.begin() + (i * n), original.begin() + ((1 + i) * n));
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}
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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::vector<int> s {1, 2};
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const auto ret = Solution::construct2DArray(s, 1, 1);
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for (const auto& i : ret) {
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for (const auto& j : i) {
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std::printf("%d ", j);
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}
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std::printf("\n");
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}
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return 0;
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}
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