Borderou de evaluare (job #26448)

Compilare: user.cpp: In function ‘int main()’: user.cpp:8:9: warning: unused variable ‘i1’ [-Wunused-variable] user.cpp:8:12: warning: unused variable ‘j2’ [-Wunused-variable] user.cpp:8:15: warning: unused variable ‘x1’ [-Wunused-variable] user.cpp:9:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:10:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]