Submission #1693198

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Source Code Expand

#include <bits/stdc++.h>

int *a, n, ans;

int main() {
  scanf("%d", &n);
  n <<= 1;
  a = new int[n];
  for (int i = 0; i < n; ++i) {
    scanf("%d", a + i);
  }
  std::sort(a, a + n);
  for (int i = 0; i < n; i += 2) {
    ans += std::min(a[i], a[i + 1]);
  }
  printf("%d\n", ans);
  return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:6:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &n);
                  ^
./Main.cpp:10:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", a + i);
                       ^

Judge Result