Submission #211579

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
211579	2020-03-20 17:39:24	Akashi	Building 4 (JOI20_building4)	C++14	100 / 100	622 ms	64000 KiB

building4

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#include <bits/stdc++.h>
using namespace std;
const int INF = 2e9;
struct usu{
    int mina, maxb, maxa, minb;
};
usu seg[1000005][2];
int n;
int a[1000005], b[1000005];
int val[1000005][2];
inline void solve(int n, int k, int nra, int nrb){
    if(k == 0) --nra;
    else --nrb;
    if(n > 1){
        for(int k2 = 0; k2 <= 1 ; ++k2){
            if(seg[n - 1][k2].mina != INF && seg[n - 1][k2].mina <= nra && seg[n - 1][k2].maxa >= nra && val[n - 1][k2] <= val[n][k]){
                solve(n - 1, k2, nra, nrb);
                break ;
            }
        }
    }
    if(k == 0) printf("A");
    else printf("B");
}
 
 
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Compilation message (stderr)

building4.cpp: In function 'int main()':
building4.cpp:36:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
     ~~~~~^~~~~~~~~~
building4.cpp:38:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &a[i]);
         ~~~~~^~~~~~~~~~~~~
building4.cpp:42:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &b[i]);
         ~~~~~^~~~~~~~~~~~~

• Subtask 1: 11 / 11
• Subtask 2: 89 / 89