Compilare: main.cpp: In function 'int main()': main.cpp:9:37: warning: unused variable 'k1' [-Wunused-variable] int k,n,i,st,dr,ok,x,i1,j1,y,nr,k1,dr1,cop; ^~ main.cpp:9:40: warning: unused variable 'dr1' [-Wunused-variable] int k,n,i,st,dr,ok,x,i1,j1,y,nr,k1,dr1,cop; ^~~ main.cpp:9:44: warning: variable 'cop' set but not used [-Wunused-but-set-variable] int k,n,i,st,dr,ok,x,i1,j1,y,nr,k1,dr1,cop; ^~~ main.cpp:7:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("grupuri.in","r",stdin); ^ main.cpp:8:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("grupuri.out","w",stdout); ^ main.cpp:10:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&k,&n); ^ main.cpp:13:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&v[i]); ^