結果

問題 No.230 Splarraay ｽﾌﾟﾗﾚｪｰｲ
コンテスト
ユーザー LayCurse
提出日時 2015-06-21 01:39:44
言語 C++11（廃止可能性あり）
(gcc 13.3.0)
結果
AC  
実行時間 138 ms / 5,000 ms
コード長 6,249 bytes
コンパイル時間 1,480 ms
コンパイル使用メモリ 171,116 KB
実行使用メモリ 10,880 KB
最終ジャッジ日時 2024-07-07 15:24:22
合計ジャッジ時間 3,162 ms
ジャッジサーバーID
（参考情報） 		judge3 / judge1
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 3
other AC * 17
権限があれば一括ダウンロードができます
コンパイルメッセージ
main.cpp: In function ‘void reader(double*)’:
main.cpp:15:29: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   15 | void reader(double *x){scanf("%lf",x);}
      |                        ~~~~~^~~~~~~~~

ソースコード

diff # 

#include<bits/stdc++.h>
using namespace std;

#define REP(i,a,b) for(i=a;i<b;i++)
#define rep(i,n) REP(i,0,n)

#define mygc(c) (c)=getchar_unlocked()
#define mypc(c) putchar_unlocked(c)

#define ll long long
#define ull unsigned ll

void reader(int *x){int k,m=0;*x=0;for(;;){mygc(k);if(k=='-'){m=1;break;}if('0'<=k&&k<='9'){*x=k-'0';break;}}for(;;){mygc(k);if(k<'0'||k>'9')break;*x=(*x)*10+k-'0';}if(m)(*x)=-(*x);}
void reader(ll *x){int k,m=0;*x=0;for(;;){mygc(k);if(k=='-'){m=1;break;}if('0'<=k&&k<='9'){*x=k-'0';break;}}for(;;){mygc(k);if(k<'0'||k>'9')break;*x=(*x)*10+k-'0';}if(m)(*x)=-(*x);}
void reader(double *x){scanf("%lf",x);}
int reader(char c[]){int i,s=0;for(;;){mygc(i);if(i!=' '&&i!='\n'&&i!='\r'&&i!='\t'&&i!=EOF) break;}c[s++]=i;for(;;){mygc(i);if(i==' '||i=='\n'||i=='\r'||i=='\t'||i==EOF) break;c[s++]=i;}c[s]='\0';return s;}
template <class T, class S> void reader(T *x, S *y){reader(x);reader(y);}
template <class T, class S, class U> void reader(T *x, S *y, U *z){reader(x);reader(y);reader(z);}
template <class T, class S, class U, class V> void reader(T *x, S *y, U *z, V *w){reader(x);reader(y);reader(z);reader(w);}

void writer(int x, char c){int s=0,m=0;char f[10];if(x<0)m=1,x=-x;while(x)f[s++]=x%10,x/=10;if(!s)f[s++]=0;if(m)mypc('-');while(s--)mypc(f[s]+'0');mypc(c);}
void writer(ll x, char c){int s=0,m=0;char f[20];if(x<0)m=1,x=-x;while(x)f[s++]=x%10,x/=10;if(!s)f[s++]=0;if(m)mypc('-');while(s--)mypc(f[s]+'0');mypc(c);}
void writer(double x, char c){printf("%.15f",x);mypc(c);}
void writer(const char c[]){int i;for(i=0;c[i]!='\0';i++)mypc(c[i]);}
void writer(const char x[], char c){int i;for(i=0;x[i]!='\0';i++)mypc(x[i]);mypc(c);}
template<class T> void writerLn(T x){writer(x,'\n');}
template<class T, class S> void writerLn(T x, S y){writer(x,' ');writer(y,'\n');}
template<class T, class S, class U> void writerLn(T x, S y, U z){writer(x,' ');writer(y,' ');writer(z,'\n');}
template<class T> void writerArr(T x[], int n){int i;if(!n){mypc('\n');return;}rep(i,n-1)writer(x[i],' ');writer(x[n-1],'\n');}

char memarr[17000000]; void *mem = memarr;
#define MD 1000000007

template<class T>
struct lazySegtreeSum{
  int size, mem;
  T *val, *sum, *addStock, *changeStock;
  char *changeFlag;

  void malloc(int N){
    mem = N;
    val = (T*)std::malloc(sizeof(T)*N);
    sum = (T*)std::malloc(sizeof(T)*N*4);
    addStock = (T*)std::malloc(sizeof(T)*N*4);
    changeStock = (T*)std::malloc(sizeof(T)*N*4);
    changeFlag  = (char*)std::malloc(sizeof(char)*N*4);
  }

  void free(void){
    mem = 0;
    std::free(val);
    std::free(sum);
    std::free(addStock);
    std::free(changeStock);
    std::free(changeFlag);
  }

  void init_sub(int node, int left, int right){
    int sz = right - left, n1 = node*2+1, n2 = node*2+2;

    if(sz==1){
      sum[node] = val[left];
      addStock[node] = 0;
      changeFlag[node] = 0;
    } else {
      init_sub(n1, left, left+sz/2);
      init_sub(n2, left+sz/2, right);
      sum[node] = sum[n1] + sum[n2];
      addStock[node] = 0;
      changeFlag[node] = 0;
    }
  }
  
  void init(int N, int zerofill = 0){
    int i;
    size = N;
    if(zerofill) rep(i,N) val[i] = 0;
    init_sub(0, 0, N);
  }

  void lazyEval(int node, int left, int right){
    int sz = right - left, n1 = node*2+1, n2 = node*2+2;

    if(sz==1) return;
    if(changeFlag[node]){
      changeFlag[n1] = changeFlag[n2] = 1;
      changeStock[n1] = changeStock[n2] = changeStock[node] + addStock[node];
      addStock[n1] = addStock[n2] = 0;
      sum[n1] = changeStock[n1] * (left+sz/2 - left);
      sum[n2] = changeStock[n2] * (right - (left+sz/2));
    } else if(addStock[node]){
      changeFlag[n1] = changeFlag[n2] = 0;
      addStock[n1] += addStock[node];
      addStock[n2] += addStock[node];
      sum[n1] += addStock[node] * (left+sz/2 - left);
      sum[n2] += addStock[node] * (right - (left+sz/2));
    }
    addStock[node] = 0;
    changeFlag[node] = 0;
  }

  void change_sub(int node, int left, int right, int a, int b, T v){
    int sz = right - left, n1 = node*2+1, n2 = node*2+2;

    a = max(a, left);
    b = min(b, right);
    if(a >= b) return;

    if(a==left && b==right){
      changeFlag[node] = 1;
      changeStock[node] = v;
      addStock[node] = 0;
      sum[node] = v * (right - left);
      return;
    }

    if(addStock[node] || changeFlag[node]) lazyEval(node, left, right);
    change_sub(n1, left, left+sz/2, a, b, v);
    change_sub(n2, left+sz/2, right, a, b, v);
    sum[node] = sum[n1] + sum[n2];
  }

  void change(int a, int b, T v){
    change_sub(0, 0, size, a, b, v);
  }

  void add_sub(int node, int left, int right, int a, int b, T v){
    int sz = right - left, n1 = node*2+1, n2 = node*2+2;

    a = max(a, left);
    b = min(b, right);
    if(a >= b) return;

    if(a==left && b==right){
      addStock[node] += v;
      sum[node] += v * (right - left);
      return;
    }

    if(addStock[node] || changeFlag[node]) lazyEval(node, left, right);
    add_sub(n1, left, left+sz/2, a, b, v);
    add_sub(n2, left+sz/2, right, a, b, v);
    sum[node] = sum[n1] + sum[n2];
  }

  void add(int a, int b, T v){
    add_sub(0, 0, size, a, b, v);
  }

  T get_sum_sub(int node, int left, int right, int a, int b){
    int sz = right - left, n1 = node*2+1, n2 = node*2+2;

    a = max(a, left);
    b = min(b, right);
    if(a >= b) return 0;
    if(a==left && b==right) return sum[node];

    if(addStock[node] || changeFlag[node]) lazyEval(node, left, right);
    return get_sum_sub(n1,left,left+sz/2,a,b) + get_sum_sub(n2,left+sz/2,right,a,b);
  }

  T get_sum(int a, int b){
    return get_sum_sub(0, 0, size, a, b);
  }
};


int N, Q;
int X, L, R;


int main(){
  int i, j, k, v1, v2;
  ll s1=0, s2=0;
  lazySegtreeSum<int> t1, t2;

  reader(&N,&Q);

  t1.malloc(N);
  t2.malloc(N);
  t1.init(N, 1);
  t2.init(N, 1);

  while(Q--){
    reader(&X,&L,&R);
    R++;
    if(X==0){
      v1 = t1.get_sum(L, R);
      v2 = t2.get_sum(L, R);
      if(v1 > v2) s1 += v1;
      if(v1 < v2) s2 += v2;
    } else if(X==1){
      t1.change(L, R, 1);
      t2.change(L, R, 0);
    } else if(X==2){
      t1.change(L, R, 0);
      t2.change(L, R, 1);
    }
  }

  s1 += t1.get_sum(0, N);
  s2 += t2.get_sum(0, N);

  writerLn(s1,s2);

  return 0;
}
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