Compilare: main.cpp:8:48: warning: bad option '-march=native -O3 -pipe' to pragma 'optimize' [-Wpragmas] 8 | #pragma GCC optimize ("-march=native -O3 -pipe") | ^ main.cpp:29:18: warning: bad option '-march=native -O3 -pipe' to attribute 'optimize' [-Wattributes] 29 | inline void read() | ^ main.cpp:39:22: warning: bad option '-march=native -O3 -pipe' to attribute 'optimize' [-Wattributes] 39 | inline void dijkstra() | ^ main.cpp: In function 'void dijkstra()': main.cpp:51:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 51 | for (int i=0; i<g[nod].size(); i++) { | ~^~~~~~~~~~~~~~ main.cpp: At global scope: main.cpp:59:19: warning: bad option '-march=native -O3 -pipe' to attribute 'optimize' [-Wattributes] 59 | inline void print() | ^ main.cpp:72:10: warning: bad option '-march=native -O3 -pipe' to attribute 'optimize' [-Wattributes] 72 | int main() | ^ main.cpp: In function 'void dijkstra()': main.cpp:54:41: warning: 'nod' may be used uninitialized [-Wmaybe-uninitialized] 54 | d[vecin]=min(d[vecin], d[nod]+cost); | ~~~~~^ main.cpp:43:22: note: 'nod' was declared here 43 | int mini=oo, nod; | ^~~