結果
| 問題 |
No.1441 MErGe
|
| コンテスト | |
| ユーザー |
 沙耶花
|
| 提出日時 | 2021-02-08 15:53:03 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 342 ms / 1,000 ms |
| コード長 | 5,321 bytes |
| コンパイル時間 | 1,928 ms |
| コンパイル使用メモリ | 196,172 KB |
| 最終ジャッジ日時 | 2025-01-18 16:21:50 |
|
ジャッジサーバーID （参考情報） |
judge3 / judge2 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 2 |
| other | AC * 28 |
コンパイルメッセージ
main.cpp: In function ‘int main()’:
main.cpp:163:14: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
163 | scanf("%d %d",&N,&Q);
| ~~~~~^~~~~~~~~~~~~~~
main.cpp:168:22: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
168 | scanf("%lld",&S[i+1]);
| ~~~~~^~~~~~~~~~~~~~~~
main.cpp:179:22: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
179 | scanf("%d %d %d",&T,&l,&r);
| ~~~~~^~~~~~~~~~~~~~~~~~~~~
ソースコード
#include <stdio.h>
#include <bits/stdc++.h>
#include <cassert>
#include <numeric>
#include <type_traits>
namespace atcoder {
namespace internal {
#ifndef _MSC_VER
template <class T>
using is_signed_int128 =
typename std::conditional<std::is_same<T, __int128_t>::value ||
std::is_same<T, __int128>::value,
std::true_type,
std::false_type>::type;
template <class T>
using is_unsigned_int128 =
typename std::conditional<std::is_same<T, __uint128_t>::value ||
std::is_same<T, unsigned __int128>::value,
std::true_type,
std::false_type>::type;
template <class T>
using make_unsigned_int128 =
typename std::conditional<std::is_same<T, __int128_t>::value,
__uint128_t,
unsigned __int128>;
template <class T>
using is_integral = typename std::conditional<std::is_integral<T>::value ||
is_signed_int128<T>::value ||
is_unsigned_int128<T>::value,
std::true_type,
std::false_type>::type;
template <class T>
using is_signed_int = typename std::conditional<(is_integral<T>::value &&
std::is_signed<T>::value) ||
is_signed_int128<T>::value,
std::true_type,
std::false_type>::type;
template <class T>
using is_unsigned_int =
typename std::conditional<(is_integral<T>::value &&
std::is_unsigned<T>::value) ||
is_unsigned_int128<T>::value,
std::true_type,
std::false_type>::type;
template <class T>
using to_unsigned = typename std::conditional<
is_signed_int128<T>::value,
make_unsigned_int128<T>,
typename std::conditional<std::is_signed<T>::value,
std::make_unsigned<T>,
std::common_type<T>>::type>::type;
#else
template <class T> using is_integral = typename std::is_integral<T>;
template <class T>
using is_signed_int =
typename std::conditional<is_integral<T>::value && std::is_signed<T>::value,
std::true_type,
std::false_type>::type;
template <class T>
using is_unsigned_int =
typename std::conditional<is_integral<T>::value &&
std::is_unsigned<T>::value,
std::true_type,
std::false_type>::type;
template <class T>
using to_unsigned = typename std::conditional<is_signed_int<T>::value,
std::make_unsigned<T>,
std::common_type<T>>::type;
#endif
template <class T>
using is_signed_int_t = std::enable_if_t<is_signed_int<T>::value>;
template <class T>
using is_unsigned_int_t = std::enable_if_t<is_unsigned_int<T>::value>;
template <class T> using to_unsigned_t = typename to_unsigned<T>::type;
} // namespace internal
} // namespace atcoder
#include <cassert>
#include <vector>
namespace atcoder {
// Reference: https://en.wikipedia.org/wiki/Fenwick_tree
template <class T> struct fenwick_tree {
using U = internal::to_unsigned_t<T>;
public:
fenwick_tree() : _n(0) {}
fenwick_tree(int n) : _n(n), data(n) {}
void add(int p, T x) {
assert(0 <= p && p < _n);
p++;
while (p <= _n) {
data[p - 1] += U(x);
p += p & -p;
}
}
T sum(int l, int r) {
assert(0 <= l && l <= r && r <= _n);
return sum(r) - sum(l);
}
private:
int _n;
std::vector<U> data;
U sum(int r) {
U s = 0;
while (r > 0) {
s += data[r - 1];
r -= r & -r;
}
return s;
}
};
} // namespace atcoder
using namespace atcoder;
using namespace std;
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define modulo 1000000007
#define mod(mod_x) ((((long long)mod_x+modulo))%modulo)
#define Inf 1000000000000000000
int N,Q;
int Find(fenwick_tree<int> &F,int v){
int ok = -1,ng = N;
while(ng-ok>1){
int mid = (ok+ng)/2;
if(F.sum(0,mid)<v)ok = mid;
else ng = mid;
}
return ok;
}
int main(){
scanf("%d %d",&N,&Q);
vector<long long> S(N+1,0LL);
rep(i,N){
scanf("%lld",&S[i+1]);
S[i+1] += S[i];
}
fenwick_tree<int> Fcnt(N),Fpos(N);
rep(i,N){
Fcnt.add(i,1);
Fpos.add(i,1);
}
rep(_,Q){
int T,l,r;
scanf("%d %d %d",&T,&l,&r);
if(T==1){
int x = Find(Fpos,l);
while(r!=l){
int y = Find(Fpos,r);
// cout<<Fpos.sum(0,N)<<','<<y<<endl;
int t = Fcnt.sum(y,y+1);
Fcnt.add(x,t);
Fcnt.add(y,-t);
Fpos.add(y,-1);
r--;
}
}
else{
//cout<<Fcnt.sum(0,Find(Fpos,r))<<endl;
long long ans = S[Fcnt.sum(0,Find(Fpos,r)+1)] - S[Fcnt.sum(0,Find(Fpos,l-1)+1)];
printf("%lld\n",ans);
}
}
return 0;
}