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View Compilation Error

0_0_37617650_1146.cpp: In function 'bool bfs()':
0_0_37617650_1146.cpp:37:18: error: expected unqualified-id before '[' token
         for(auto [v, r, c] : G[u]) if(c && !d[v]) {
                  ^
0_0_37617650_1146.cpp:37:18: error: expected ';' before '[' token
0_0_37617650_1146.cpp:37:19: error: 'v' was not declared in this scope
         for(auto [v, r, c] : G[u]) if(c && !d[v]) {
                   ^
0_0_37617650_1146.cpp:37:22: error: 'r' was not declared in this scope
         for(auto [v, r, c] : G[u]) if(c && !d[v]) {
                      ^
0_0_37617650_1146.cpp:37:25: error: 'c' was not declared in this scope
         for(auto [v, r, c] : G[u]) if(c && !d[v]) {
                         ^
0_0_37617650_1146.cpp: In lambda function:
0_0_37617650_1146.cpp:37:28: error: expected '{' before ':' token
         for(auto [v, r, c] : G[u]) if(c && !d[v]) {
                            ^
0_0_37617650_1146.cpp: In function 'bool bfs()':
0_0_37617650_1146.cpp:37:28: error: expected ';' before ':' token
0_0_37617650_1146.cpp:37:28: error: expected primary-expression before ':' token
0_0_37617650_1146.cpp:37:28: error: expected ')' before ':' token
0_0_37617650_1146.cpp:37:28: error: expected primary-expression before ':' token
0_0_37617650_1146.cpp: In function 'int dfs(int, int, int)':
0_0_37617650_1146.cpp:49:15: error: expected unqualified-id before '[' token
         auto& [v, r, c] = G[u][i];
               ^
0_0_37617650_1146.cpp:49:15: error: expected initializer before '[' token
0_0_37617650_1146.cpp:50:20: error: 'v' was not declared in this scope
         int cr = G[v][r].c;
                    ^
0_0_37617650_1146.cpp:50:23: error: 'r' was not declared in this scope
         int cr = G[v][r].c;
                       ^
0_0_37617650_1146.cpp:53:9: error: 'c' was not declared in this scope
         c += t, G[v][r].c -= t;
         ^


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