Compilare: user.cpp: In function ‘int main()’: user.cpp:106:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("barbar.in","r",stdin); ^ user.cpp:107:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("barbar.out","w",stdout); ^ user.cpp:109:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&lin , &col ); ^ user.cpp:118:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%c",&ch); ^ user.cpp:121:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%c",&ch ); ^ user.cpp:137:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%c",&ch); ^ user.cpp:160:50: warning: ‘sti’ may be used uninitialized in this function [-Wmaybe-uninitialized] mindist [ sti ] [ stj ] = dist [ sti ][ stj ]; ^ user.cpp:160:50: warning: ‘stj’ may be used uninitialized in this function [-Wmaybe-uninitialized] user.cpp:179:42: warning: ‘solj’ may be used uninitialized in this function [-Wmaybe-uninitialized] printf("%d",mindist [ soli ][ solj ] ); ^ user.cpp:179:42: warning: ‘soli’ may be used uninitialized in this function [-Wmaybe-uninitialized]