#include <stdio.h> int main() { int n; scanf("%d",&n); double a,b; double c,d; while(n--) { scanf("%lf%lf",&a,&b); double s1,s2; c=b/5; d=b/4; if(a<=3) { s1=11+c*2; s2=11+d*2.5; } else if(a>3&&a<=10) { s1=11+c*2+(a-3)*2; s2=11+d*2.5+(a-3)*2.5; } else if(a>10) { s1=11+7*2+(a-10)*3+c*2; s2=11+7*2.5+(a-10)*3.75+d*2.5; } int x=s1; if(s1-x>0.5) x=x+1; int y=s2; if(s2-y>0.5) y=y+1; printf("%d\n",y-x); } return 0; } |
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