Submission #1075271

#	Time	Username	Problem	Language	Result	Execution time	Memory
1075271		raduv	Simple (info1cup19_simple)	C++17	100 / 100	269 ms	39592 KiB

subway

#include <bits/stdc++.h>
using namespace std;
const int MAXN = 200'001;
const long long INF = (1LL << 60);
struct aintnode{
  long long minimp, minpar, maximp, maxpar;
}aint[4 * MAXN + 1];
long long lazy[4 * MAXN + 1];
long long minipar, maximpar;
static inline void nodeupd(int node, long long val){
  if(aint[node].minpar != INF){
    aint[node].minpar += val;
    aint[node].maxpar += val;
  }
  if(aint[node].minimp != INF){
    aint[node].minimp += val;
    aint[node].maximp += val;
  }
  if(val % 2 == 1){
    swap(aint[node].minimp, aint[node].minpar);
    swap(aint[node].maximp, aint[node].maxpar);
  }
}
static inline void propagate(int node){
  if(lazy[node] > 0){
    lazy[2 * node] += lazy[node];
    nodeupd(2 * node, lazy[node]);
    lazy[2 * node + 1] += lazy[node];
    nodeupd(2 * node + 1, lazy[node]);
    lazy[node] = 0;
  }
}
void build(int node, int st, int dr){
  if(st == dr){
    int x;
    scanf("%d", &x);
    if(x % 2 == 0)
      aint[node].minpar = aint[node].maxpar = x;
    else
      aint[node].minimp = aint[node].maximp = x;
  }
  else{
    int mij = (st + dr) / 2;
    build(2 * node, st, mij);
    build(2 * node + 1, mij + 1, dr);
    aint[node].minpar = min(aint[2 * node].minpar, aint[2 * node + 1].minpar);
    aint[node].minimp = min(aint[2 * node].minimp, aint[2 * node + 1].minimp);
    aint[node].maxpar = max(aint[2 * node].maxpar, aint[2 * node + 1].maxpar);
    aint[node].maximp = max(aint[2 * node].maximp, aint[2 * node + 1].maximp);
  }
}
void update(int node, int st, int dr, int l, int r, int val){
  if( l <= st && dr <= r ){
    lazy[node] += val;
    nodeupd(node, val);
  }
  else{
    propagate(node);
    int mij = (st + dr) / 2;
    if( l <= mij )
      update(2 * node, st, mij, l, r, val);
    if(r > mij)
      update(2 * node + 1, mij + 1, dr, l, r, val);
    aint[node].minpar = min(aint[2 * node].minpar, aint[2 * node + 1].minpar);
    aint[node].minimp = min(aint[2 * node].minimp, aint[2 * node + 1].minimp);
    aint[node].maxpar = max(aint[2 * node].maxpar, aint[2 * node + 1].maxpar);
    aint[node].maximp = max(aint[2 * node].maximp, aint[2 * node + 1].maximp);
  }
}
void query(int node, int st, int dr, int l, int r){
  if( l <= st && dr <= r ){
    minipar = min(minipar, aint[node].minpar);
    maximpar = max(maximpar, aint[node].maximp);
  }
  else{
    propagate(node);
    int mij = (st + dr) / 2;
    if( l <= mij )
      query(2 * node, st, mij, l, r);
    if(r > mij)
      query(2 * node + 1, mij + 1, dr, l, r);
  }
}
int main() {
  int n, q, i, l, r, val, tip;
  scanf("%d", &n);
  for( i = 0; i <= 4 * MAXN; i++ ){
    aint[i].minimp = aint[i].minpar = INF;
    aint[i].maximp = aint[i].maxpar = -1;
  }
  build(1, 1, n);
 
 
  scanf("%d", &q);
  for( i = 0; i < q; i++ ){
    scanf("%d%d%d", &tip, &l, &r);
    if(tip == 0){
      scanf("%d", &val);
      update(1, 1, n, l, r, val);
    }
    else{
      minipar = INF;
      maximpar = -1;
      query(1, 1, n, l, r);
      printf("%lld %lld\n", (minipar == INF ? -1 : minipar), maximpar);
    }
  }
  return 0;
}

Compilation message (stderr)

subway.cpp: In function 'void build(int, int, int)':
subway.cpp:36:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   36 |     scanf("%d", &x);
      |     ~~~~~^~~~~~~~~~
subway.cpp: In function 'int main()':
subway.cpp:86:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   86 |   scanf("%d", &n);
      |   ~~~~~^~~~~~~~~~
subway.cpp:94:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   94 |   scanf("%d", &q);
      |   ~~~~~^~~~~~~~~~
subway.cpp:96:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   96 |     scanf("%d%d%d", &tip, &l, &r);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
subway.cpp:98:12: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   98 |       scanf("%d", &val);
      |       ~~~~~^~~~~~~~~~~~

• Subtask 1: 30 / 30
• Subtask 2: 30 / 30
• Subtask 3: 40 / 40