Compilare: main.cpp: In function 'int main()': main.cpp:77:18: warning: 'ej' may be used uninitialized [-Wmaybe-uninitialized] 77 | if(val[ei][ej].second==0){ | ^ main.cpp:25:26: note: 'ej' was declared here 25 | int n,m,i,j,si,sj,ei,ej; | ^~ main.cpp:77:14: warning: 'ei' may be used uninitialized [-Wmaybe-uninitialized] 77 | if(val[ei][ej].second==0){ | ^ main.cpp:25:23: note: 'ei' was declared here 25 | int n,m,i,j,si,sj,ei,ej; | ^~ main.cpp:64:12: warning: 'sj' may be used uninitialized [-Wmaybe-uninitialized] 64 | qd.push({si,sj,INT32_MAX}); | ~~~~~~~^~~~~~~~~~~~~~~~~~~ main.cpp:25:20: note: 'sj' was declared here 25 | int n,m,i,j,si,sj,ei,ej; | ^~ main.cpp:64:12: warning: 'si' may be used uninitialized [-Wmaybe-uninitialized] 64 | qd.push({si,sj,INT32_MAX}); | ~~~~~~~^~~~~~~~~~~~~~~~~~~ main.cpp:25:17: note: 'si' was declared here 25 | int n,m,i,j,si,sj,ei,ej; | ^~