靠，这都可以啊？？

SF

foo.cpp: In function 'int main()':
foo.cpp:8:8: warning: unused variable 'b' [-Wunused-variable]
int a,b,c;
^
测试数据 #0: Accepted, time = 0 ms, mem = 612 KiB, score = 10
测试数据 #1: Accepted, time = 0 ms, mem = 616 KiB, score = 10
测试数据 #2: Accepted, time = 0 ms, mem = 616 KiB, score = 10
测试数据 #3: Accepted, time = 0 ms, mem = 616 KiB, score = 10
测试数据 #4: Accepted, time = 0 ms, mem = 616 KiB, score = 10
测试数据 #5: Accepted, time = 0 ms, mem = 616 KiB, score = 10
测试数据 #6: Accepted, time = 0 ms, mem = 612 KiB, score = 10
测试数据 #7: Accepted, time = 0 ms, mem = 612 KiB, score = 10
测试数据 #8: Accepted, time = 15 ms, mem = 612 KiB, score = 10
测试数据 #9: Accepted, time = 15 ms, mem = 616 KiB, score = 10
Accepted, time = 30 ms, mem = 616 KiB, score = 100