Compilare: main.cpp: In function 'void cer1(int)': main.cpp:35:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<v[k].size();j++) ~^~~~~~~~~~~~ main.cpp: In function 'void dijkstra()': main.cpp:54:25: warning: statement has no effect [-Wunused-value] pqi[kk.n][kk.dr]==1; ~~~~~~~~~~~~~~~~^~~ main.cpp:56:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int s=0;s<v[kk.n].size();s++) ~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:88:33: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d%d%d",&p,&n,&m); ^ main.cpp:94:34: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d",&d[i]); ^ main.cpp:99:41: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d%d%d",&a,&b,&c); ^ main.cpp:112:30: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d",&d[i]); ^ main.cpp:116:37: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d%d%d",&a,&b,&c); ^