bile6.cpp:5: error: redefinition of 'short int mat [2001][2001]' bile6.cpp:4: error: 'short int mat [2001][2001]' previously declared here bile6.cpp: In function 'int main()': bile6.cpp:11: warning: unused variable 'nr' bile6.cpp:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result bile6.cpp:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result bile6.cpp:12: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result bile6.cpp:15: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result bile6.cpp:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result