Runtime Error
foo.cc: In function 'int main()': foo.cc:10:16: warning: right operand of comma operator has no effect [-Wunused-value] 10 | cin>>m>>n,K; | ^
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foo.cc: In function 'int main()': foo.cc:10:16: warning: right operand of comma operator has no effect [-Wunused-value] 10 | cin>>m>>n,K; | ^
[Hydro](https://hydro.ac)提供评测服务