tsunami.cpp: In function 'int main()': tsunami.cpp:39: warning: format '%d' expects type 'int*', but argument 3 has type 'char*' tsunami.cpp:34: warning: unused variable 'ch' tsunami.cpp:35: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result tsunami.cpp:39: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result