View Compilation Error

0_0_2677840_3792.cpp: In function `int DFS(MA, int, int)':
0_0_2677840_3792.cpp:28: error: declaration of 'MA st' shadows a parameter
0_0_2677840_3792.cpp:35: error: `start' undeclared (first use this function)
0_0_2677840_3792.cpp:35: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_2677840_3792.cpp: At global scope:
0_0_2677840_3792.cpp:70: error: `MA start' used prior to declaration