Main.cpp: In function 'int main()':
Main.cpp:14:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
14 | freopen("test.inp","r",stdin); freopen("test.out","w",stdout); freopen("test.err","w",stderr);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
Main.cpp:14:43: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
14 | freopen("test.inp","r",stdin); freopen("test.out","w",stdout); freopen("test.err","w",stderr);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:14:75: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
14 | freopen("test.inp","r",stdin); freopen("test.out","w",stdout); freopen("test.err","w",stderr);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~