Submission #1775387


Source Code Expand

#include<bits/stdc++.h>
using namespace std;
const int maxn=1e5+20;
int X,K,Q,solve();
int hehe=solve(),r[maxn],mx[maxn],mn[maxn],c[maxn];
int solve(){
	scanf("%d",&X);
	scanf("%d",&K);
	for(int i=1;i<=K;++i){
		scanf("%d",&r[i]); 
	}
	mx[0]=X;
	for(int i=1;i<=K;++i){
		mx[i]=mx[i-1];mn[i]=mn[i-1];
		if(i&1){
			mn[i]=max(mn[i],min(r[i]-r[i-1]-c[i-1],mx[i]));
			c[i]=max(c[i-1]+mn[i-1]-r[i]+r[i-1],0)-mn[i]; 
		}
		else{
			mx[i]=min(mx[i],max(X-r[i]+r[i-1]-c[i-1],mn[i]));
			c[i]=min(c[i-1]+mx[i-1]+r[i]-r[i-1],X)-mx[i];
		}
	}
	scanf("%d",&Q);
	for(int a,t,pl,ans;Q--;){
		scanf("%d%d",&t,&a);
		ans=c[pl=(upper_bound(r+1,r+K+1,t)-r-1)];
		if(a<=mn[pl])ans+=mn[pl];
		else if(a>=mx[pl])ans+=mx[pl];
		else ans+=a;
		if(pl&1)ans=min(X,ans+t-r[pl]);
		else ans=max(0,ans-t+r[pl]);
		printf("%d\n",ans);     
	}
	return 0;
}
main(){};

Submission Info

Submission Time
Task F - Sandglass
User ndqzhang1111
Language C++14 (GCC 5.4.1)
Score 700
Code Size 873 Byte
Status AC
Exec Time 50 ms
Memory 2816 KB

Compile Error

./Main.cpp: In function ‘int solve()’:
./Main.cpp:7:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&X);
                ^
./Main.cpp:8:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&K);
                ^
./Main.cpp:10:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&r[i]); 
                    ^
./Main.cpp:24:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&Q);
                ^
./Main.cpp:26:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d",&t,&a);
                      ^

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 700 / 700
Status
AC × 3
AC × 42
Set Name Test Cases
Sample 0_000.txt, 0_001.txt, 0_002.txt
All 0_000.txt, 0_001.txt, 0_002.txt, 1_003.txt, 1_004.txt, 1_005.txt, 1_006.txt, 1_007.txt, 1_008.txt, 1_009.txt, 1_010.txt, 1_011.txt, 1_012.txt, 1_013.txt, 1_014.txt, 1_015.txt, 1_016.txt, 1_017.txt, 1_018.txt, 1_019.txt, 1_020.txt, 1_021.txt, 1_022.txt, 1_023.txt, 1_024.txt, 1_025.txt, 1_026.txt, 1_027.txt, 1_028.txt, 1_029.txt, 1_030.txt, 1_031.txt, 1_032.txt, 1_033.txt, 1_034.txt, 1_035.txt, 1_036.txt, 1_037.txt, 1_038.txt, 1_039.txt, 1_040.txt, 1_041.txt
Case Name Status Exec Time Memory
0_000.txt AC 1 ms 256 KB
0_001.txt AC 1 ms 256 KB
0_002.txt AC 1 ms 256 KB
1_003.txt AC 41 ms 2048 KB
1_004.txt AC 42 ms 2048 KB
1_005.txt AC 44 ms 2048 KB
1_006.txt AC 41 ms 2048 KB
1_007.txt AC 42 ms 2048 KB
1_008.txt AC 44 ms 2048 KB
1_009.txt AC 41 ms 2048 KB
1_010.txt AC 43 ms 2048 KB
1_011.txt AC 44 ms 2048 KB
1_012.txt AC 42 ms 2176 KB
1_013.txt AC 43 ms 2176 KB
1_014.txt AC 45 ms 2176 KB
1_015.txt AC 43 ms 2304 KB
1_016.txt AC 44 ms 2304 KB
1_017.txt AC 46 ms 2176 KB
1_018.txt AC 43 ms 2432 KB
1_019.txt AC 45 ms 2432 KB
1_020.txt AC 47 ms 2304 KB
1_021.txt AC 43 ms 2304 KB
1_022.txt AC 45 ms 2432 KB
1_023.txt AC 48 ms 2432 KB
1_024.txt AC 44 ms 2304 KB
1_025.txt AC 46 ms 2560 KB
1_026.txt AC 49 ms 2560 KB
1_027.txt AC 45 ms 2304 KB
1_028.txt AC 46 ms 2432 KB
1_029.txt AC 49 ms 2688 KB
1_030.txt AC 46 ms 2432 KB
1_031.txt AC 47 ms 2432 KB
1_032.txt AC 50 ms 2816 KB
1_033.txt AC 32 ms 1152 KB
1_034.txt AC 33 ms 1024 KB
1_035.txt AC 47 ms 2560 KB
1_036.txt AC 33 ms 1152 KB
1_037.txt AC 34 ms 1152 KB
1_038.txt AC 49 ms 2688 KB
1_039.txt AC 33 ms 896 KB
1_040.txt AC 35 ms 1280 KB
1_041.txt AC 50 ms 2816 KB