minerale.cpp: In function 'int main()': minerale.cpp:30: warning: array subscript has type 'char' minerale.cpp:43: warning: array subscript has type 'char' minerale.cpp:43: warning: comparison between signed and unsigned integer expressions minerale.cpp:45: warning: array subscript has type 'char' minerale.cpp:58: warning: comparison between signed and unsigned integer expressions minerale.cpp:61: warning: comparison between signed and unsigned integer expressions minerale.cpp:64: warning: comparison between signed and unsigned integer expressions minerale.cpp:86: warning: comparison between signed and unsigned integer expressions minerale.cpp:92: warning: comparison between signed and unsigned integer expressions