piata.cpp: In function 'int main()': piata.cpp:5: warning: unused variable 'i' piata.cpp:5: warning: unused variable 'j' piata.cpp:5: warning: unused variable 'cul' piata.cpp:5: warning: unused variable 'co' piata.cpp:5: warning: unused variable 'min1' piata.cpp:5: warning: unused variable 'poz' piata.cpp:5: warning: unused variable 's' piata.cpp:5: warning: unused variable 'x' piata.cpp:5: warning: unused variable 'c' piata.cpp:5: warning: unused variable 'cu' piata.cpp:6: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result piata.cpp:7: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result piata.cpp:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result