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] int v[7133]={1,1};int main(){freopen("tamplar.in","r",stdin);freopen("tamplar.out","w",stdout);int N,i,j,t,b=100000;scanf("%d",&N);for(i = 2; i < N; i++){for(j=1,t=0;j<=v[0]||t;j++,t/=b){v[j]=(t+=v[j]*i)%b;}v[0]=j-1;}printf("%d",v[v[0]]);for(i=v[0]-1;i>0;i--){printf("%05d",v[i]);}return 0;} ^ user.cpp:2:95: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] int v[7133]={1,1};int main(){freopen("tamplar.in","r",stdin);freopen("tamplar.out","w",stdout);int N,i,j,t,b=100000;scanf("%d",&N);for(i = 2; i < N; i++){for(j=1,t=0;j<=v[0]||t;j++,t/=b){v[j]=(t+=v[j]*i)%b;}v[0]=j-1;}printf("%d",v[v[0]]);for(i=v[0]-1;i>0;i--){printf("%05d",v[i]);}return 0;} ^ user.cpp:2:131: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] int v[7133]={1,1};int main(){freopen("tamplar.in","r",stdin);freopen("tamplar.out","w",stdout);int N,i,j,t,b=100000;scanf("%d",&N);for(i = 2; i < N; i++){for(j=1,t=0;j<=v[0]||t;j++,t/=b){v[j]=(t+=v[j]*i)%b;}v[0]=j-1;}printf("%d",v[v[0]]);for(i=v[0]-1;i>0;i--){printf("%05d",v[i]);}return 0;} ^