统计 - RQNOJ

编译失败，当前编译语言：C

详情如下

/mnt/resource/tmp/1199180.c:1:19: error: iostream: No such file or directory
/mnt/resource/tmp/1199180.c:2:17: error: cstdio: No such file or directory
/mnt/resource/tmp/1199180.c:3: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘namespace’
/mnt/resource/tmp/1199180.c:8: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘a’
/mnt/resource/tmp/1199180.c: In function ‘dfs’:
/mnt/resource/tmp/1199180.c:14: error: ‘a’ undeclared (first use in this function)
/mnt/resource/tmp/1199180.c:14: error: (Each undeclared identifier is reported only once
/mnt/resource/tmp/1199180.c:14: error: for each function it appears in.)
/mnt/resource/tmp/1199180.c:15: warning: incompatible implicit declaration of built-in function ‘printf’
/mnt/resource/tmp/1199180.c: In function ‘main’:
/mnt/resource/tmp/1199180.c:19: warning: incompatible implicit declaration of built-in function ‘scanf’
/mnt/resource/tmp/1199180.c:20: error: ‘for’ loop initial declarations are only allowed in C99 mode
/mnt/resource/tmp/1199180.c:20: note: use option -std=c99 or -std=gnu99 to compile your code
/mnt/resource/tmp/1199180.c:21: error: ‘a’ undeclared (first use in this function)
/mnt/resource/tmp/1199180.c:23: error: redefinition of ‘i’
/mnt/resource/tmp/1199180.c:20: note: previous definition of ‘i’ was here
/mnt/resource/tmp/1199180.c:23: error: ‘for’ loop initial declarations are only allowed in C99 mode
/mnt/resource/tmp/1199180.c:24: error: ‘for’ loop initial declarations are only allowed in C99 mode
/mnt/resource/tmp/1199180.c:33: warning: incompatible implicit declaration of built-in function ‘printf’