Compilare: user.cpp: In function ‘int main()’: user.cpp:2:61: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] using namespace std;int main(){freopen("sushi.in","r",stdin);freopen("sushi.out","w",stdout);int n,w,q,m=0,x;scanf("%d",&n);for(int i=1;i<=n;i++){scanf("%d",&x);if(x>m){m=x;w=i;q=i;}else if(m==x&&q==(i-1))q=i;}printf("%d %d %d ",w,q,2*m);} ^ user.cpp:2:93: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] using namespace std;int main(){freopen("sushi.in","r",stdin);freopen("sushi.out","w",stdout);int n,w,q,m=0,x;scanf("%d",&n);for(int i=1;i<=n;i++){scanf("%d",&x);if(x>m){m=x;w=i;q=i;}else if(m==x&&q==(i-1))q=i;}printf("%d %d %d ",w,q,2*m);} ^ user.cpp:2:124: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] using namespace std;int main(){freopen("sushi.in","r",stdin);freopen("sushi.out","w",stdout);int n,w,q,m=0,x;scanf("%d",&n);for(int i=1;i<=n;i++){scanf("%d",&x);if(x>m){m=x;w=i;q=i;}else if(m==x&&q==(i-1))q=i;}printf("%d %d %d ",w,q,2*m);} ^ user.cpp:2:161: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] using namespace std;int main(){freopen("sushi.in","r",stdin);freopen("sushi.out","w",stdout);int n,w,q,m=0,x;scanf("%d",&n);for(int i=1;i<=n;i++){scanf("%d",&x);if(x>m){m=x;w=i;q=i;}else if(m==x&&q==(i-1))q=i;}printf("%d %d %d ",w,q,2*m);} ^ user.cpp:2:195: warning: ‘q’ may be used uninitialized in this function [-Wmaybe-uninitialized] using namespace std;int main(){freopen("sushi.in","r",stdin);freopen("sushi.out","w",stdout);int n,w,q,m=0,x;scanf("%d",&n);for(int i=1;i<=n;i++){scanf("%d",&x);if(x>m){m=x;w=i;q=i;}else if(m==x&&q==(i-1))q=i;}printf("%d %d %d ",w,q,2*m);} ^