foo.cc: In function 'std::vector<int> sequencemultiply(std::vector<int>, std::vector<int>)':
foo.cc:48:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
48 | for (int i = 0; i < a.size(); i++)
| ~~^~~~~~~~~~
foo.cc: In function 'bool isinfinitesequence(std::vector<int>, std::vector<int>)':
foo.cc:77:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
77 | for (int i = 0; i < c.size(); i++)
| ~~^~~~~~~~~~
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