leetcode上报错：
================================================================= ==42==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x60c000000888 at pc 0x00000034f486 bp 0x7ffd5554bb10 sp 0x7ffd5554bb08 READ of size 8 at 0x60c000000888 thread T0 #4 0x7fb0243d90b2 (/lib/x86_64-linux-gnu/libc.so.6+0x270b2) Address 0x60c000000888 is a wild pointer. Shadow bytes around the buggy address: 0x0c187fff80c0: fa fa fa fa fa fa fa fa fd fd fd fd fd fd fd fd 0x0c187fff80d0: fd fd fd fd fd fd fd fa fa fa fa fa fa fa fa fa 0x0c187fff80e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fa 0x0c187fff80f0: fa fa fa fa fa fa fa fa 00 00 00 00 00 00 00 00 0x0c187fff8100: 00 00 00 00 00 00 00 fa fa fa fa fa fa fa fa fa =>0x0c187fff8110: fa[fa]fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c187fff8120: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c187fff8130: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c187fff8140: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c187fff8150: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c187fff8160: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa Shadow byte legend (one shadow byte represents 8 application bytes): Addressable: 00 Partially addressable: 01 02 03 04 05 06 07 Heap left redzone: fa Freed heap region: fd Stack left redzone: f1 Stack mid redzone: f2 Stack right redzone: f3 Stack after return: f5 Stack use after scope: f8 Global redzone: f9 Global init order: f6 Poisoned by user: f7 Container overflow: fc Array cookie: ac Intra object redzone: bb ASan internal: fe Left alloca redzone: ca Right alloca redzone: cb Shadow gap: cc ==42==ABORTING
leetcode使用AddressSanitizer检查内存是否存在非法访问。报此错，主要是访问了非法内容。
解决方法：数组访问越界，导致此错，后来发现是在访问二维数组的边界row和col弄反了。。
【注意】
LeetCode系统在执行代码时，系统都会判断数组越界问题，并直接报错，根据经验leetcode在用到数组或指针时，做两种处理：
1.定义指针时，需要申请内存块，如 int* data = malloc(SIZE * sizeof(int));后面访问指针时，不要大于SIZE值的地址范围。
2.定义数组，如int data[SIZE] 后，访问数组时，不要大于SIZE值的地址范围。
