Submission #586346

#	Time	Username	Problem	Language	Result	Execution time	Memory
586346		krit3379	Lightning Rod (NOI18_lightningrod)	C++17	4 / 100	1837 ms	84624 KiB

Main

#include<bits/stdc++.h>
using namespace std;
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
#define N 10000005

int x,y,val;
vector<int> s;

int main(){
    int n,i;
    scanf("%d",&n);
    for(i=1;i<=n;i++){
        scanf("%d %d",&x,&y);
        val=x-y;
        auto it=lower_bound(s.begin(),s.end(),val);
        if(it==s.end())s.push_back(val);
        else *it=val;
    }
    printf("%d",s.size());
    return 0;
}

Compilation message (stderr)

lightningrod.cpp: In function 'int main()':
lightningrod.cpp:20:14: warning: format '%d' expects argument of type 'int', but argument 2 has type 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wformat=]
   20 |     printf("%d",s.size());
      |             ~^  ~~~~~~~~
      |              |        |
      |              int      std::vector<int>::size_type {aka long unsigned int}
      |             %ld
lightningrod.cpp:12:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |     scanf("%d",&n);
      |     ~~~~~^~~~~~~~~
lightningrod.cpp:14:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 |         scanf("%d %d",&x,&y);
      |         ~~~~~^~~~~~~~~~~~~~~

• Subtask 1: 4 / 4
• Subtask 2: 0 / 7
• Subtask 3: 0 / 12
• Subtask 4: 0 / 21
• Subtask 5: 0 / 26
• Subtask 6: 0 / 10
• Subtask 7: 0 / 20