View Compilation Error

0_0_18229300_18828.cpp:11:13: error: stray '\243' in program
             int s = 2*(m-1)；//每队中出现的最高得分
             ^
0_0_18229300_18828.cpp:11:13: error: stray '\273' in program
0_0_18229300_18828.cpp: In function 'int main()':
0_0_18229300_18828.cpp:12:13: error: expected ',' or ';' before 'int'
             int sum = 0;
             ^
0_0_18229300_18828.cpp:17:21: error: 'sum' was not declared in this scope
                     sum += a;
                     ^
0_0_18229300_18828.cpp:19:17: error: 'sum' was not declared in this scope
             if (sum == m*(m-1))
                 ^