View Compilation Error

0_0_36422943_22869.cpp: In function 'int main()':
0_0_36422943_22869.cpp:129:18: error: expected unqualified-id before '[' token
             auto [u,v,w] = t;
                  ^
0_0_36422943_22869.cpp:130:16: error: 'w' was not declared in this scope
             if(w==1){
                ^
0_0_36422943_22869.cpp:131:21: error: 'u' was not declared in this scope
                 a.m[u][v+N]=a.m[u+N][v]=inv[deg[u]];
                     ^
0_0_36422943_22869.cpp:131:24: error: 'v' was not declared in this scope
                 a.m[u][v+N]=a.m[u+N][v]=inv[deg[u]];
                        ^
0_0_36422943_22869.cpp:134:21: error: 'u' was not declared in this scope
                 a.m[u][v]=a.m[u+N][v+N]=inv[deg[u]];
                     ^
0_0_36422943_22869.cpp:134:24: error: 'v' was not declared in this scope
                 a.m[u][v]=a.m[u+N][v+N]=inv[deg[u]];
                        ^