Compilare: main.cpp: In function 'int main()': main.cpp:40:35: warning: unused variable 'prima' [-Wunused-variable] int nr,nr1,nr2,nr3,tmin=0x3f3f3f,prima,ultima,mij,var,var1,rez=-1; ^~~~~ main.cpp:40:41: warning: unused variable 'ultima' [-Wunused-variable] int nr,nr1,nr2,nr3,tmin=0x3f3f3f,prima,ultima,mij,var,var1,rez=-1; ^~~~~~ main.cpp:40:48: warning: unused variable 'mij' [-Wunused-variable] int nr,nr1,nr2,nr3,tmin=0x3f3f3f,prima,ultima,mij,var,var1,rez=-1; ^~~ main.cpp:40:52: warning: unused variable 'var' [-Wunused-variable] int nr,nr1,nr2,nr3,tmin=0x3f3f3f,prima,ultima,mij,var,var1,rez=-1; ^~~ main.cpp:40:56: warning: unused variable 'var1' [-Wunused-variable] int nr,nr1,nr2,nr3,tmin=0x3f3f3f,prima,ultima,mij,var,var1,rez=-1; ^~~~ main.cpp:40:61: warning: unused variable 'rez' [-Wunused-variable] int nr,nr1,nr2,nr3,tmin=0x3f3f3f,prima,ultima,mij,var,var1,rez=-1; ^~~ main.cpp:41:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("lanterna.in","r",stdin); ^ main.cpp:42:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("lanterna.out","w",stdout); ^ main.cpp:43:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &k); ^ main.cpp:45:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &v[i]); ^ main.cpp:46:17: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &m); ^ main.cpp:48:43: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d", &nr, &nr1, &nr2, &nr3); ^