Submission #1149607

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1149607	2025-02-12 15:25:47	henriess	Advertisement 2 (JOI23_ho_t2)	C++20	Compilation error	0 ms	0 KiB

Main

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#include <cstdio>
#include <vector>
#include <utility>
#include <algorithm>
int ri() {
  int n;
  scanf("%d", &n);
  return n;
}
int main() {
  int N = ri();
  std::vector<std::pair<int, int> > points(N);
  for (int i = 0; i < N; i++) {
    int X = ri();
    int E = ri();
    points[i] = {X - E, X + E}; // {a[i], b[i]}
  }
  
  // a巌㷘㷪らbé™·é †ã·«ã·™ã‚‹ã·¨ã€·a㷌巌㷘や㷤㷧複数回b㷮最大値を更新㷗㷦㷗㷾㷣㷟り㷗㷪㷷㷪る
  std::sort(points.begin(), points.end(), [] (auto &i, auto &j) {
    if (i.first != j.first) return i.first < j.first;
    return i.second > j.second;
  });
  int max = -1;
  int cnt = 0;
  for (auto i : points) if (max < i.second) max = i.second, cnt++;
  
  printf("%d\n", cnt);
 
 
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Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:31:15: error: expected primary-expression at end of input
   31 |         return
      |               ^
Main.cpp:31:15: error: expected ';' at end of input
   31 |         return
      |               ^
      |               ;
Main.cpp:31:15: error: expected '}' at end of input
Main.cpp:12:12: note: to match this '{'
   12 | int main() {
      |            ^
Main.cpp: In function 'int ri()':
Main.cpp:8:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    8 |         scanf("%d", &n);
      |         ~~~~~^~~~~~~~~~