Compilare: main.cpp: In function 'int main()': main.cpp:2:94: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] using namespace std;vector <int> v;int main(){int t,n,x;freopen("avarcolaci.in" , "r" ,stdin);freopen("avarcolaci.out", "w",stdout);scanf("%d",&t);for(int i=1;i<=t;i++){scanf("%d",&n);for(int j=1;j<=2*n;j++){scanf("%d",&x);v.push_back(x);}sort(v.begin(),v.end());int j;for(j=0;j<n;j++)if(v[j]==v[j+n]){printf("%d\n",v[j]);j=2*n+1;}if(j!=2*(n+1))printf("Mozart\n");v.clear();}return 0;} ^ main.cpp:2:132: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] using namespace std;vector <int> v;int main(){int t,n,x;freopen("avarcolaci.in" , "r" ,stdin);freopen("avarcolaci.out", "w",stdout);scanf("%d",&t);for(int i=1;i<=t;i++){scanf("%d",&n);for(int j=1;j<=2*n;j++){scanf("%d",&x);v.push_back(x);}sort(v.begin(),v.end());int j;for(j=0;j<n;j++)if(v[j]==v[j+n]){printf("%d\n",v[j]);j=2*n+1;}if(j!=2*(n+1))printf("Mozart\n");v.clear();}return 0;} ^ main.cpp:2:147: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] using namespace std;vector <int> v;int main(){int t,n,x;freopen("avarcolaci.in" , "r" ,stdin);freopen("avarcolaci.out", "w",stdout);scanf("%d",&t);for(int i=1;i<=t;i++){scanf("%d",&n);for(int j=1;j<=2*n;j++){scanf("%d",&x);v.push_back(x);}sort(v.begin(),v.end());int j;for(j=0;j<n;j++)if(v[j]==v[j+n]){printf("%d\n",v[j]);j=2*n+1;}if(j!=2*(n+1))printf("Mozart\n");v.clear();}return 0;} ^ main.cpp:2:184: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] using namespace std;vector <int> v;int main(){int t,n,x;freopen("avarcolaci.in" , "r" ,stdin);freopen("avarcolaci.out", "w",stdout);scanf("%d",&t);for(int i=1;i<=t;i++){scanf("%d",&n);for(int j=1;j<=2*n;j++){scanf("%d",&x);v.push_back(x);}sort(v.begin(),v.end());int j;for(j=0;j<n;j++)if(v[j]==v[j+n]){printf("%d\n",v[j]);j=2*n+1;}if(j!=2*(n+1))printf("Mozart\n");v.clear();}return 0;} ^ main.cpp:2:223: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] using namespace std;vector <int> v;int main(){int t,n,x;freopen("avarcolaci.in" , "r" ,stdin);freopen("avarcolaci.out", "w",stdout);scanf("%d",&t);for(int i=1;i<=t;i++){scanf("%d",&n);for(int j=1;j<=2*n;j++){scanf("%d",&x);v.push_back(x);}sort(v.begin(),v.end());int j;for(j=0;j<n;j++)if(v[j]==v[j+n]){printf("%d\n",v[j]);j=2*n+1;}if(j!=2*(n+1))printf("Mozart\n");v.clear();}return 0;} ^