View Compilation Error

0_0_33294678_26043.cpp: In function 'int main()':
0_0_33294678_26043.cpp:53:17: error: expected ';' before 'if'
                 if(s>node[j].D)s=s-node[j].D;
                 ^
0_0_33294678_26043.cpp:54:17: error: 'else' without a previous 'if'
                 else s=0;
                 ^
0_0_33294678_26043.cpp:58:21: error: expected ';' before 'pre'
                     pre[i|(1<<j)]=i
                     ^