View Compilation Error

0_0_26122350_31660.cpp: In function 'matrix mul(matrix, matrix, int)':
0_0_26122350_31660.cpp:23:17: error: expected '(' at end of input
                 if
                 ^
0_0_26122350_31660.cpp:23:17: error: expected '}' at end of input
0_0_26122350_31660.cpp:23:17: error: expected '}' at end of input
0_0_26122350_31660.cpp:23:17: error: expected '}' at end of input
0_0_26122350_31660.cpp:23:17: error: expected '}' at end of input