| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 1065448 |
2024-08-19T07:44:28 Z |
김은성(#11116) |
Food Court (JOI21_foodcourt) |
C++17 |
|
6 ms |
9816 KB |
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const ll INF = 3.1557e18;
ll mn[1<<19], mn2[1<<19];
ll crit[1<<19], reset[1<<19], add[1<<19];
void mergenode(int v){
if(mn[2*v] < mn[2*v+1]){
mn[v] = mn[2*v];
mn2[v] = min(mn2[2*v], mn[2*v+1]);
}
else if(mn[2*v] > mn[2*v+1]){
mn[v] = mn[2*v+1];
mn2[v] = min(mn2[2*v+1], mn[2*v]);
}
else{
mn[v] = mn[2*v];
mn2[v] = min(mn2[2*v], mn2[2*v+1]);
}
}
void dolazy(int v, bool op){
//assert(mn[v] < mn2[v]);
if(mn[v] == crit[v])
mn[v] = reset[v];
else
mn[v] += add[v];
mn2[v] += add[v];
if(!op){
if(crit[2*v] >= INF/2){
crit[2*v] = crit[v];
reset[2*v] = reset[v];
}
else if(reset[2*v] == crit[v])
reset[2*v] = reset[v];
else
reset[2*v] += add[v];
add[2*v] += add[v];
if(crit[2*v+1] >= INF/2){
crit[2*v+1] = crit[v];
reset[2*v+1] = reset[v];
}
else if(reset[2*v+1] == crit[v])
reset[2*v+1] = reset[v];
else
reset[2*v+1] += add[v];
add[2*v+1] += add[v];
}
crit[v] = INF;
add[v] = 0;
}
void update(int v, int l, int r, int s, int e, ll d){
dolazy(v, l==r);
if(e<l || r<s)
return;
if(s<=l && r<=e){
if(l==r){
mn[v] = max(mn[v] + d, 0ll);
mn2[v] = INF;
return;
}
else if(mn[v] > -d){
mn[v] += d;
mn2[v] += d;
crit[v] = INF;
add[2*v] += d;
add[2*v+1] += d;
return;
}
else if(mn2[v] > -d){
if(crit[2*v] >= INF/2){
crit[2*v] = mn[v];
reset[2*v] = 0;
}
else if(reset[2*v] == mn[v])
reset[2*v] = 0;
else
reset[2*v] += d;
if(crit[2*v+1] >= INF/2){
crit[2*v+1] = mn[v];
reset[2*v+1] = 0;
}
else if(reset[2*v+1] == mn[v])
reset[2*v+1] = 0;
else
reset[2*v+1] += d;
mn[v] = 0;
mn2[v] += d;
return;
}
}
int mid = (l+r)/2;
update(2*v, l, mid, s, e, d);
update(2*v+1, mid+1, r, s, e, d);
mergenode(v);
}
ll pointvalue(int v, int l, int r, int idx){
dolazy(v, l==r);
if(l==r)
return mn[v];
int mid = (l+r)/2;
if(idx <= mid)
return pointvalue(2*v, l, mid, idx);
return pointvalue(2*v+1, mid+1, r, idx);
}
int main(){
int n, m, q, i, t, type, l, r, c, a;
ll k, b;
scanf("%d %d %d", &n, &m, &q);
assert(n<=2000 && q<=2000);
//assert(m==1);
memset(mn2, 63, sizeof(mn2));
memset(crit, 63, sizeof(crit));
deque<int> qa[(const int)(n+1)];
for(t=1; t<=q; t++){
scanf("%d", &type);
if(type==1){
scanf("%d %d %d %lld", &l, &r, &c, &k);
for(i=l; i<=r; i++)
qa[i].push_back(c);
update(1, 1, n, l, r, k);
}
else if(type==2){
scanf("%d %d %lld", &l, &r, &k);
for(i=l; i<=r; i++){
if(!qa[i].empty())
qa[i].pop_front();
}
update(1, 1, n, l, r, -k);
}
else{
scanf("%d %lld", &a, &b);
if(pointvalue(1, 1, n, a) >= b){
printf("%d\n", qa[a][b-1]);
}
else
printf("0\n");
}
}
return 0;
}
Compilation message
foodcourt.cpp: In function 'int main()':
foodcourt.cpp:108:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
108 | scanf("%d %d %d", &n, &m, &q);
| ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
foodcourt.cpp:115:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
115 | scanf("%d", &type);
| ~~~~~^~~~~~~~~~~~~
foodcourt.cpp:117:9: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
117 | scanf("%d %d %d %lld", &l, &r, &c, &k);
| ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
foodcourt.cpp:123:9: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
123 | scanf("%d %d %lld", &l, &r, &k);
| ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
foodcourt.cpp:131:9: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
131 | scanf("%d %lld", &a, &b);
| ~~~~~^~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
6 ms |
9816 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
6 ms |
9816 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
1 ms |
348 KB |
Execution killed with signal 6 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
1 ms |
604 KB |
Execution killed with signal 6 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
6 ms |
9816 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
1 ms |
600 KB |
Execution killed with signal 6 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
6 ms |
9816 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
6 ms |
9816 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
