Submission #248890

#TimeUTC-0UsernameProblemLanguageResultExecution timeMemory
2488902020-07-13 17:08:12rocks03Art Exhibition (JOI18_art)C++14
0 / 100
3 ms640 KiB
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<ll,ll>
#define ff first
#define ss second
#define pb push_back
main(){
freopen("input.txt", "r", stdin);
freopen("output.txt", "w", stdout);
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
int N; cin >> N;
vector<pii> v(N);
for(int i = 0; i < N; i++) cin >> v[i].ff >> v[i].ss;
sort(v.begin(), v.end());
ll ans = v[0].ss;
set<pii> s; s.insert({v[0].ss+v[0].ff, 0});
ll sum = v[0].ss;
for(int i = 1; i < N; i++){
pii best = *s.rbegin();
ans = max(ans, best.ff - v[i].ff + v[i].ss);
sum += v[i].ss;
s.insert({sum+v[0].ff, 0});
s.insert({best.ff - v[i].ff + v[i].ss, best.ss});
}
cout << ans;
}
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

art.cpp:9:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main(){
      ^
art.cpp: In function 'int main()':
art.cpp:10:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
     freopen("input.txt", "r", stdin);
     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
art.cpp:11:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
     freopen("output.txt", "w", stdout);
     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...