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View Compilation Error

0_0_15985331_14545.c: In function 'Scan':
0_0_15985331_14545.c:3:17: error: expected expression before '/' token
 int Scan() {    //ÊäÈëÍâ¹Ò
                 ^
0_0_15985331_14545.c:3:17: error: stray '\312' in program
0_0_15985331_14545.c:3:17: error: stray '\344' in program
0_0_15985331_14545.c:3:17: error: stray '\310' in program
0_0_15985331_14545.c:3:17: error: stray '\353' in program
0_0_15985331_14545.c:3:17: error: stray '\315' in program
0_0_15985331_14545.c:3:17: error: stray '\342' in program
0_0_15985331_14545.c:3:17: error: stray '\271' in program
0_0_15985331_14545.c:3:17: error: stray '\322' in program
0_0_15985331_14545.c:7:9: error: 'res' undeclared (first use in this function)
         res = res * 10 + (ch - '0');
         ^
0_0_15985331_14545.c:7:9: note: each undeclared identifier is reported only once for each function it appears in
0_0_15985331_14545.c: In function 'main':
0_0_15985331_14545.c:19:9: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
         for (int i = 0; i < n; ++i) {
         ^
0_0_15985331_14545.c:19:9: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_15985331_14545.c:20:13: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
             for (int j = 0; j < m; ++j) {
             ^


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