Submission #421818

# Submission time Handle Problem Language Result Execution time Memory
421818 2021-06-09T12:37:19 Z tqbfjotld Food Court (JOI21_foodcourt) C++14
7 / 100
1000 ms 113672 KB
#include <bits/stdc++.h>
using namespace std;
#define int long long


struct node{
    int s,e;
    int lazymin,lazych;
    int v;
    node *l,*r;
    node (int _s, int _e){
        s = _s; e = _e;
        lazymin = 0; lazych = 0;
        v = 0;
        if (s!=e){
            l = new node(s,(s+e)/2);
            r = new node((s+e)/2+1,e);
        }
    }
    void proc(){
        if (lazymin==0 && lazych==0) return;
        if (s!=e){
            l->lazymin = min(l->lazymin,l->lazych+lazymin);
            l->lazych += lazych;
            r->lazymin = min(r->lazymin,r->lazych+lazymin);
            r->lazych += lazych;
        }
        if (s==e){
            v += lazymin;
            v = max(v,0LL);
            v -= lazymin;
            v += lazych;
        }
        lazymin = 0;
        lazych = 0;
    }
    void inc(int a, int b, int val){
        proc();
        if (a<=s && e<=b){
            lazych += val;
            proc();
            return;
        }
        else if (b<=(s+e)/2){
            l->inc(a,b,val);
        }
        else if (a>(s+e)/2){
            r->inc(a,b,val);
        }
        else{
            l->inc(a,b,val);
            r->inc(a,b,val);
        }
        l->proc();
        r->proc();
    }
    void dec(int a, int b, int val){
        proc();
        if (a<=s && e<=b){
            lazych -= val;
            lazymin = min(lazymin,lazych);
            proc();
            return;
        }
        else if (b<=(s+e)/2){
            l->dec(a,b,val);
        }
        else if (a>(s+e)/2){
            r->dec(a,b,val);
        }
        else{
            l->dec(a,b,val);
            r->dec(a,b,val);
        }
        l->proc(); r->proc();
    }
    int qu(int pos){
        proc();
        if (s==e) return v;
        if (pos>(s+e)/2)return r->qu(pos);
        else return l->qu(pos);
    }
}*root;

struct q_dat{
    int l,r;
    int t,k;
    q_dat(){
        l = 0; r = 0; t = 0; k = 0;
    }
    q_dat(int _l, int _r, int _t, int _k){
        l = _l; r = _r; t = _t; k = _k;
    }
};
vector<q_dat> query1;
int groupnum[250005];
vector<q_dat> query2;
vector<pair<pair<int,int>,int> > query3;

int fw[250005];

void upd(int pos, int val){
    while (pos<250005){
        fw[pos] += val;
        pos+=pos&-pos;
    }
}
int qu(int pos){
    int ans = 0;
    while (pos>0){
        ans += fw[pos];
        pos -= pos&-pos;
    }
    return ans;
}

int numt[250005];
int ans[250005];
vector<pair<pair<int,int>,int> > bsvals[250005];
vector<pair<pair<int,int>,int> > bsvals2[250005];

struct node2{
    int s, e;
    int lazyval;
    node2 *l,*r;
    node2 (int _s, int _e){
        s = _s; e = _e;
        lazyval = -1;
        if (s!=e){
            l = new node2(s,(s+e)/2);
            r = new node2((s+e)/2+1,e);
        }
    }
    void proc(){
        if (lazyval==-1) return;
        if (s!=e){
            l->lazyval = lazyval;
            r->lazyval = lazyval;
            lazyval = -1;
        }
    }
    int qu(int pos){
        proc();
        if (s==e) return lazyval;
        if (pos<=(s+e)/2) return l->qu(pos);
        return r->qu(pos);
    }
    void upd(int a, int b, int val){
        proc();
        if (a<=s && e<=b) {
            lazyval = val;
            proc();
            return;
        }
        if (b<=(s+e)/2){
            l->upd(a,b,val);
        }
        else if (a>(s+e)/2){
            r->upd(a,b,val);
        }
        else{
            l->upd(a,b,val);
            r->upd(a,b,val);
        }
    }
}*root2;

int incl[250005];
int incr[250005];
int incamt[250005];
int finans[250005];

main(){
    int n,m,q;
    scanf("%lld%lld%lld",&n,&m,&q);
    root = new node(1,n);
    for (int x = 0; x<q; x++){
        int a;
        scanf("%lld",&a);
        if (a==1){
            int b,c,d,e;
            scanf("%lld%lld%lld%lld",&b,&c,&d,&e);
            groupnum[x] = d;
            query1.push_back(q_dat(b,c,x,e));
            root->inc(b,c,e);
            upd(b,e);
            upd(c+1,-e);
            incl[x] = b;
            incr[x] = c;
            incamt[x] = e;
        }
        else if (a==2){
            int b,c,d;
            scanf("%lld%lld%lld",&b,&c,&d);
            query2.push_back(q_dat(b,c,x,d));
            root->dec(b,c,d);
        }
        else if (a==3){
            int b,c;
            scanf("%lld%lld",&b,&c);
            query3.push_back({{b,c},x});
            int num = root->qu(b);
            numt[x] = qu(b)-num+c;
            incl[x] = b;
            if (num<c){
                ans[x] = -1;
            }
            //printf("%lld has %lld\n",b,numpopped[x]);
        }
    }
    for (auto x : query3){
        if (ans[x.second]==-1) continue;
        int a = -1;
        int b = q-1;
        int mid = (a+b)/2;
        bsvals[mid].push_back({{a,b},x.second});
    }
    bool found = true;
    while (found){
        found = false;
        for (int k = 0; k<250005; k++){
            fw[k] = 0;
        }
        for (int t = 0; t<q; t++){
            if (incamt[t]!=0){
                upd(incl[t],incamt[t]);
                upd(incr[t]+1,-incamt[t]);
            }
            for (auto x : bsvals[t]){
                if (x.first.first+1==x.first.second) {
                    ans[x.second] = x.first.second;
                    continue;
                }
                if (qu(incl[x.second])>=numt[x.second]){
                    bsvals2[(x.first.first+t)/2].push_back({{x.first.first,t},x.second});
                }
                else{
                    bsvals2[(x.first.second+t)/2].push_back({{t,x.first.second},x.second});
                }
                found = true;
            }
            bsvals[t].clear();
        }
        swap(bsvals2,bsvals);
    }
    root2 = new node2(1,n);
    vector<pair<pair<int,int>,int> > stuff;
    for (auto x : query3){
        if (ans[x.second]==-1) {
            continue;
        }
        stuff.push_back({{ans[x.second],incl[x.second]},x.second});
    }
    sort(stuff.begin(),stuff.end());
    int curt = 0;
    for (auto x : stuff){
        while (curt<=x.first.first){
            if (incamt[curt]!=0){
                root2->upd(incl[curt],incr[curt],curt);
                //printf("set %lld to %lld with %lld\n",incl[curt],incr[curt],curt);
            }
            curt++;
        }
        finans[x.second] = root2->qu(x.first.second);
        //printf("query %lld = %lld\n",x.first.second,finans[x.second]);
    }
    for (auto x : query3){
       // printf("ans = %lld\n",ans[x.second]);
        if (finans[x.second]==0){
            printf("0\n");
        }
        else
        printf("%lld\n",groupnum[finans[x.second]]);
    }
}

Compilation message

foodcourt.cpp:173:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
  173 | main(){
      | ^~~~
foodcourt.cpp: In function 'int main()':
foodcourt.cpp:175:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  175 |     scanf("%lld%lld%lld",&n,&m,&q);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
foodcourt.cpp:179:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  179 |         scanf("%lld",&a);
      |         ~~~~~^~~~~~~~~~~
foodcourt.cpp:182:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  182 |             scanf("%lld%lld%lld%lld",&b,&c,&d,&e);
      |             ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
foodcourt.cpp:194:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  194 |             scanf("%lld%lld%lld",&b,&c,&d);
      |             ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
foodcourt.cpp:200:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  200 |             scanf("%lld%lld",&b,&c);
      |             ~~~~~^~~~~~~~~~~~~~~~~~
# Verdict Execution time Memory Grader output
1 Incorrect 32 ms 14592 KB Output isn't correct
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Incorrect 32 ms 14592 KB Output isn't correct
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Correct 191 ms 33264 KB Output is correct
2 Correct 233 ms 33340 KB Output is correct
3 Correct 207 ms 33352 KB Output is correct
4 Correct 214 ms 33468 KB Output is correct
5 Correct 223 ms 33432 KB Output is correct
6 Correct 254 ms 33424 KB Output is correct
7 Correct 149 ms 22860 KB Output is correct
8 Correct 120 ms 23240 KB Output is correct
9 Correct 232 ms 33340 KB Output is correct
10 Correct 202 ms 33392 KB Output is correct
11 Correct 214 ms 33256 KB Output is correct
12 Correct 193 ms 33324 KB Output is correct
13 Correct 191 ms 31424 KB Output is correct
14 Correct 207 ms 36856 KB Output is correct
15 Correct 218 ms 29496 KB Output is correct
16 Correct 234 ms 33988 KB Output is correct
# Verdict Execution time Memory Grader output
1 Execution timed out 1075 ms 113672 KB Time limit exceeded
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Incorrect 32 ms 14592 KB Output isn't correct
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Correct 238 ms 43948 KB Output is correct
2 Correct 308 ms 43804 KB Output is correct
3 Incorrect 307 ms 46396 KB Output isn't correct
4 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Incorrect 32 ms 14592 KB Output isn't correct
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Incorrect 32 ms 14592 KB Output isn't correct
2 Halted 0 ms 0 KB -