結果
| 問題 |
No.789 範囲の合計
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2019-02-13 14:51:14 |
| 言語 | C++11(廃止可能性あり) (gcc 13.3.0) |
| 結果 |
AC
|
| 実行時間 | 78 ms / 1,000 ms |
| コード長 | 3,231 bytes |
| コンパイル時間 | 1,591 ms |
| コンパイル使用メモリ | 170,192 KB |
| 実行使用メモリ | 8,344 KB |
| 最終ジャッジ日時 | 2024-09-13 09:59:21 |
| 合計ジャッジ時間 | 2,923 ms |
|
ジャッジサーバーID (参考情報) |
judge3 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 15 |
コンパイルメッセージ
main.cpp: In function ‘void _main()’:
main.cpp:65:15: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
65 | int N; scanf("%d",&N);
| ~~~~~^~~~~~~~~
main.cpp:67:17: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
67 | rep(i,N) scanf("%lld %lld %lld",&p[i],&q[i],&r[i]);
| ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ソースコード
#include "bits/stdc++.h"
#define ALL(g) (g).begin(),(g).end()
#define REP(i, x, n) for(int i = x; i < n; i++)
#define rep(i,n) REP(i,0,n)
#define RREP(i, x, n) for(int i = x; i >= n; i--)
#define rrep(i, n) RREP(i,n,0)
#define pb push_back
#pragma GCC optimize ("-O3")
using namespace std;
// #define DEBUG_IS_VALID
#ifdef DEBUG_IS_VALID
#define DEB 1
#else
#define DEB 0
#endif
#define DUMPOUT cout
#define dump(...) if(DEB) DUMPOUT<<" "<<#__VA_ARGS__<<" :["<<__LINE__<<":"<<__FUNCTION__<<"]"<<endl<<" "; if(DEB) dump_func(__VA_ARGS__)
template<typename T1,typename T2>ostream& operator << (ostream& os, pair<T1,T2> p){cout << "(" << p.first << ", " << p.second << ")"; return os;}
template<typename T>ostream& operator << (ostream& os, vector<T>& vec) { os << "{"; for (int i = 0; i<vec.size(); i++) os << vec[i] << (i + 1 == vec.size() ? "" : ", "); os << "}"; return os; }
template<typename T>ostream& operator << (ostream& os, set<T>& st){cout << "{"; for(auto itr = st.begin(); itr != st.end(); itr++) cout << *itr << (next(itr)!=st.end() ? ", " : ""); cout << "}"; return os;}
template<typename T1,typename T2>ostream& operator << (ostream& os, map<T1,T2> mp){cout << "{"; for(auto itr = mp.begin(); itr != mp.end(); itr++) cout << "(" << (itr->first) << ", " << (itr->second) << ")" << (next(itr)!=mp.end() ? "," : ""); cout << "}"; return os; }
void dump_func(){DUMPOUT << endl;}
template <class Head, class... Tail>void dump_func(Head&& head, Tail&&... tail){ DUMPOUT << head; if (sizeof...(Tail) == 0) { DUMPOUT << " "; } else { DUMPOUT << ", "; } dump_func(std::move(tail)...);}
template<class T> inline bool chmax(T& a,T const& b){if(a>=b) return false; a=b; return true;}
template<class T> inline bool chmin(T& a,T const& b){if(a<=b) return false; a=b; return true;}
void _main();
int main(){ cin.tie(0); ios::sync_with_stdio(false); _main(); return 0;}
using ll = long long;
using P = pair<int,int>;
using Pl = pair<ll,ll>;
using vi = vector<int>;
using vvi = vector<vi>;
using vl = vector<ll>;
using vvl = vector<vl>;
const int mod=1e9+7,INF=1<<29;
const double EPS=1e-12,PI=3.1415926535897932384626;
const ll lmod = 1e9+7,LINF=1LL<<59;
template <typename T>
class FenwickTree {
const int n;
vector<T> data;
public:
FenwickTree(int n) : n(n), data(n, 0) {}
void add(int i, T value) {
for (; i < n; i |= i + 1) data[i] += value;
}
T sum(int i) const {
// sum of [0,i]
T res = 0;
for (; i >= 0; i = (i & (i + 1)) - 1) res += data[i];
return res;
}
T sum(int l, int r) const { return sum(r - 1) - sum(l - 1); }
};
void _main(){
int N; scanf("%d",&N);
vl p(N),q(N),r(N);
rep(i,N) scanf("%lld %lld %lld",&p[i],&q[i],&r[i]);
vl pos;
rep(i,N){
if(p[i]==0) pos.pb(q[i]);
else pos.pb(q[i]), pos.pb(r[i]);
}
sort(ALL(pos));
pos.erase(unique(ALL(pos)),pos.end());
int M = pos.size();
FenwickTree<ll> tree(M+2);
auto pos_idx = [&](ll x){
return int(lower_bound(pos.begin(),pos.end(),x)-pos.begin());
};
int i1,i2;
ll ans = 0;
rep(i,N){
if(p[i]==0){
i1 = pos_idx(q[i]);
tree.add(i1,r[i]);
}else{
i1 = pos_idx(q[i]);
i2 = pos_idx(r[i]);
ans += tree.sum(i1,i2+1);
}
}
cout << ans << endl;
}