trifoi.cpp: In function 'int main()': trifoi.cpp:13: warning: format '%ld' expects type 'long int*', but argument 2 has type 'int*' trifoi.cpp:15: warning: format '%ld' expects type 'long int*', but argument 2 has type 'int*' trifoi.cpp:22: warning: format '%ld' expects type 'long int', but argument 2 has type 'int' trifoi.cpp:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result trifoi.cpp:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result trifoi.cpp:13: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result trifoi.cpp:15: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result