Compilare: main.cpp:1:2: warning: #import is a deprecated GCC extension [-Wdeprecated] #import<stdio.h> ^~~~~~ main.cpp:2:22: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type] int r,x,y,t,j,k;main(){freopen("divmul.in","r",stdin),freopen("divmul.out","w",stdout),scanf("%d",&r);while(r--){scanf("%d%d",&x,&y),t=y/x,k=0;for(j=2;j*j<=t;j++)if(t%j==0)for(k++;t>1&&t%j==0;t/=j);if(t>1)k++;printf("%d\n",1<<k);}} ^ main.cpp: In function 'int main()': main.cpp:2:102: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] int r,x,y,t,j,k;main(){freopen("divmul.in","r",stdin),freopen("divmul.out","w",stdout),scanf("%d",&r);while(r--){scanf("%d%d",&x,&y),t=y/x,k=0;for(j=2;j*j<=t;j++)if(t%j==0)for(k++;t>1&&t%j==0;t/=j);if(t>1)k++;printf("%d\n",1<<k);}} ^ main.cpp:2:102: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] main.cpp:2:102: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] main.cpp:2:143: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] int r,x,y,t,j,k;main(){freopen("divmul.in","r",stdin),freopen("divmul.out","w",stdout),scanf("%d",&r);while(r--){scanf("%d%d",&x,&y),t=y/x,k=0;for(j=2;j*j<=t;j++)if(t%j==0)for(k++;t>1&&t%j==0;t/=j);if(t>1)k++;printf("%d\n",1<<k);}} ^