Submission #2556986

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Source Code Expand

import std.algorithm, std.container, std.conv, std.math, std.range, std.typecons, std.stdio, std.string;

auto rdsp(){return readln.splitter;}
void pick(R,T)(ref R r,ref T t){t=r.front.to!T;r.popFront;}
void readV(T...)(ref T t){auto r=rdsp;foreach(ref v;t)pick(r,v);}

void main()
{
  int a, b, c, d; readV(a, b, c, d);

  auto n = 101, e = new int[](n);
  e[a]++; e[b]--; e[c]++; e[d]--;
  foreach (i; 1..n) e[i] += e[i-1];

  writeln(e.filter!"a==2".count);
}

Submission Info

Judge Result