Submission #1564133


Source Code Expand

#include<stdio.h>
int a,n,c=0,f=0;
main() {
scanf("%d",&n);
for(int i=1;i<=n;i++) {
scanf("%d",&a);
if(a==i) c+=(!f),f^=1;
else f=0;
}
printf("%d\n",c);
}

Submission Info

Submission Time
Task D - Derangement
User ppppiano
Language C++14 (GCC 5.4.1)
Score 400
Code Size 164 Byte
Status AC
Exec Time 10 ms
Memory 128 KB

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:4:15: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
 scanf("%d",&n);
               ^
./Main.cpp:6:15: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
 scanf("%d",&a);
               ^

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 400 / 400
Status
AC × 4
AC × 15
Set Name Test Cases
Sample 0_000.txt, 0_001.txt, 0_002.txt, 0_003.txt
All 0_000.txt, 0_001.txt, 0_002.txt, 0_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
Case Name Status Exec Time Memory
0_000.txt AC 0 ms 128 KB
0_001.txt AC 0 ms 128 KB
0_002.txt AC 0 ms 128 KB
0_003.txt AC 0 ms 128 KB
1_004.txt AC 0 ms 128 KB
1_005.txt AC 9 ms 128 KB
1_006.txt AC 9 ms 128 KB
1_007.txt AC 9 ms 128 KB
1_008.txt AC 9 ms 128 KB
1_009.txt AC 9 ms 128 KB
1_010.txt AC 9 ms 128 KB
1_011.txt AC 9 ms 128 KB
1_012.txt AC 10 ms 128 KB
1_013.txt AC 10 ms 128 KB
1_014.txt AC 9 ms 128 KB