Submission #845151

---

Source Code Expand

#include <cstdio>
#include <cstdlib>
#include <cassert>
#include <iostream>
#include <set>
#include <vector>
#include <cstring>
#include <string>
#include <algorithm>
#include <numeric>
#include <cmath>
#include <complex>
#include <map>
#include <queue>
#include <array>
#include <bitset>
using namespace std;
typedef long long ll;
typedef vector<int> vi;
typedef vector<ll> vl;
typedef vector<vi> vvi;
typedef vector<vl> vvl;
typedef vector<double> vd;
typedef vector<vd> vvd;
typedef pair<int, int> pii;
typedef pair<double, double> pdd;
typedef vector<pii> vii;
typedef vector<string> vs;

int main() {
  int n;
  scanf("%d", &n);
  vi a(n), ts(n);
  for (int i = 0; i < n; ++i) {
    scanf("%d", &a[i]);
    ts[i] = a[i];
  }
  sort(ts.begin(), ts.end());
  ts.resize(unique(ts.begin(), ts.end()) - ts.begin());
  int res = 0;
  for (int i = 0; i < n; ++i) {
    a[i] = lower_bound(ts.begin(), ts.end(), a[i]) - ts.begin();
    if (a[i] % 2 && i % 2 == 0) ++res;
  }
  printf("%d\n", res);
  return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:32:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &n);
                  ^
./Main.cpp:35:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &a[i]);
                       ^

Judge Result