#include <bits/stdc++.h>
using namespace std;
#define int long long
#define pii pair<int,int>
#define OK puts("OK");
#define fr first
#define sc second
#define ret return
#define scan1(a) scanf("%lld",&a);
#define scan2(a,b) scanf("%lld %lld",&a, &b);
#define scan3(a,b,c) scanf("%lld %lld %lld",&a,&b,&c);
#define all(s) s.begin(),s.end()
#define pb push_back
#define endi puts("");
const int N = 1e6+12,INF=1e9+7;
int q[N],der[4*N];
void update(int v,int l,int r,int x){
if (l==r)
der[v]+=1;
else {
int m = l+r>>1;
if (m < x)
update((v<<1)+1,m+1,r,x);
else
update(v<<1,l,m,x);
}
}
int get_ans(int v,int l,int r,int ql,int qr){
if (r < ql || qr < l || ql > qr)ret 0;
if (ql <= l && r <= qr)ret der[v];
int m = l+r>>1;
ret get_ans(v<<1,l,m,ql,qr)+get_ans((v<<1)+1,m+1,r,ql,qr);
}
main(){
int n,j,i,ans=0,sum=0,l;
scan1(n)
for (i=1;i<=n;++i)scan1(q[i])
update(1,1,1000000,q[1]);
for (i=2;i<=n;++i){
if (q[i] < q[i-1]){
ans++;
l = q[i];
}
else {
int x = get_ans(1,1,1000000,l+1,q[i]-1);
if (x > sum){
l = q[i];
ans++;
sum=1;
}
else {
sum++;
}
}
update(1,1,1000000,q[i]);
}
cout <<ans+1;
}
Compilation message
money.cpp: In function 'void update(long long int, long long int, long long int, long long int)':
money.cpp:23:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
23 | int m = l+r>>1;
| ~^~
money.cpp: In function 'long long int get_ans(long long int, long long int, long long int, long long int, long long int)':
money.cpp:34:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
34 | int m = l+r>>1;
| ~^~
money.cpp: At global scope:
money.cpp:38:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
38 | main(){
| ^
money.cpp: In function 'int main()':
money.cpp:39:11: warning: unused variable 'j' [-Wunused-variable]
39 | int n,j,i,ans=0,sum=0,l;
| ^
money.cpp:9:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
9 | #define scan1(a) scanf("%lld",&a);
| ~~~~~^~~~~~~~~~~
money.cpp:40:5: note: in expansion of macro 'scan1'
40 | scan1(n)
| ^~~~~
money.cpp:9:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
9 | #define scan1(a) scanf("%lld",&a);
| ~~~~~^~~~~~~~~~~
money.cpp:41:23: note: in expansion of macro 'scan1'
41 | for (i=1;i<=n;++i)scan1(q[i])
| ^~~~~
money.cpp:49:28: warning: 'l' may be used uninitialized in this function [-Wmaybe-uninitialized]
49 | int x = get_ans(1,1,1000000,l+1,q[i]-1);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
384 KB |
Output is correct |
| 2 |
Incorrect |
1 ms |
384 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
384 KB |
Output is correct |
| 2 |
Incorrect |
1 ms |
384 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
384 KB |
Output is correct |
| 2 |
Incorrect |
1 ms |
384 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
384 KB |
Output is correct |
| 2 |
Incorrect |
1 ms |
384 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
