ABC056B - NarrowRectanglesEasy
#include <cstdlib> #include <iostream> using namespace std; int main(void) { int w, a, b, ans = 0; cin.tie(0); ios::sync_with_stdio(false); cin >> w >> a >> b; if (abs(a - b) > w) { ans = abs(a - b) - w; } cout << ans << "\n"; return 0; }