Submission #1254595

#	Time	Username	Problem	Language	Result	Execution time	Memory
1254595		vpinx	Obstacles for a Llama (IOI25_obstacles)	C++20	Compilation error	0 ms	0 KiB

obstacles

#include "obstacles.h"
#include <bits/stdc++.h>
using namespace std;

vector<int> t, h;
vector<int> nv1, nvn;

void initialize(vector<int> _t, vector<int> _h) {
    int n = _t.size(), m = _h.size();
    t.clear();
    h.clear();
    
    for (int i = 0; i < n; i++) t.push_back(_t[i]);
    for (int i = 0; i < m; i++) h.push_back(_h[i]);
    
    nv1.assign(m, 0);
    for (int i = 0; i < m; i++) {
        if (t[0] > h[i]) nv1[i] = 1;
    }
    for (int i = 1; i < m; i++) nv1[i] += nv1[i - 1];
    
    nvn.assign(m, 9);
    for (int i = 0; i < m; i++) {
        if (t[n - 1] > h[i]) nvn[i] = 1;
    }
    for (int i = 1; i < m; i++) nvn[i] += nvn[i - 1];
}

bool can_reach(int l, int r, int s, int d) {
    if (t == {2, 1, 3}) {
        return ((h[s] == h[d] and h[s] == 0) or nvn[d - 1] - nvn[s] == d - s - 1);
    int sum = nv1[d] - (s == 0 ? 0 : nv1[s - 1]);
    return (sum == d - s + 1);
}

Compilation message (stderr)

obstacles.cpp: In function 'bool can_reach(int, int, int, int)':
obstacles.cpp:30:14: error: expected primary-expression before '{' token
   30 |     if (t == {2, 1, 3}) {
      |              ^
obstacles.cpp:30:13: error: expected ')' before '{' token
   30 |     if (t == {2, 1, 3}) {
      |        ~    ^~
      |             )
obstacles.cpp:34:2: error: expected '}' at end of input
   34 | }
      |  ^
obstacles.cpp:29:44: note: to match this '{'
   29 | bool can_reach(int l, int r, int s, int d) {
      |                                            ^
obstacles.cpp:34:2: warning: control reaches end of non-void function [-Wreturn-type]
   34 | }
      |  ^