Compilare: main.cpp: In function 'int main()': main.cpp:20:48: warning: unused variable 'plus2' [-Wunused-variable] int c,n,k,x,max1=0,min1=10005,cnt=0,cool=1,plus2=0,st,lmax=0; ^~~~~ main.cpp:20:56: warning: unused variable 'st' [-Wunused-variable] int c,n,k,x,max1=0,min1=10005,cnt=0,cool=1,plus2=0,st,lmax=0; ^~ main.cpp:18:33: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("cool.in","r",stdin); ^ main.cpp:19:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("cool.out","w",stdout); ^ main.cpp:21:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&c,&n,&k); ^ main.cpp:26:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&x); ^ main.cpp:44:34: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&a[i]); ^