func_code_string: #include <bits/stdc++.h>   using namespace std;   double const e = 0.000001;   int main() {     int n, a, d;     cin >> n >> a >> d;     int prevv = 10000000;     double prevt = 0;     for (int i = 0; i < n; i++) {       int t, v;       cin >> t >> v;       double t1 = (double)v / a;       double s1 = a * t1 * t1 / 2;       double t2 = 0;       if (s1 - d > e) {         t1 = sqrt((2.0 * d) / a);       } else {         double s2 = d - s1;         t2 = s2 / v;       }       double tt = t1 + t2;       if (t + tt - prevt > e) {         prevt = t + tt;         prevv = v;       }       printf( %f n , prevt);     }     return 0;   }   