Compile error: ‘max_element’ is not a member of ‘std’

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compiled error at master@cc91df0 in example files:

[ 74%] Built target test-vec1
/home/wesley/WorkPlace/chatGPT/ggml/examples/mnist/main.cpp: In function ‘int mnist_eval(const mnist_model&, int, std::vector<float>)’:
/home/wesley/WorkPlace/chatGPT/ggml/examples/mnist/main.cpp:196:27: error: ‘max_element’ is not a member of ‘std’; did you mean ‘tuple_element’?
  196 |     int prediction = std::max_element(finalData, finalData + 10) - finalData;
      |                           ^~~~~~~~~~~
      |                           tuple_element
make[2]: *** [examples/mnist/CMakeFiles/mnist.dir/build.make:76: examples/mnist/CMakeFiles/mnist.dir/main.cpp.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:704: examples/mnist/CMakeFiles/mnist.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs....

max_element is always contained in <algorithm>, but main.cpp did not include it.

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fixed by d71eba4