Compilare: main.cpp: In function 'double actminim(int, int, int, double, double, double)': main.cpp:71:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int dfs(int)': main.cpp:95:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int main()': main.cpp:101:22: warning: unused variable 'a2' [-Wunused-variable] double a1, b1, c1, a2, b2, c2; ^~ main.cpp:101:26: warning: unused variable 'b2' [-Wunused-variable] double a1, b1, c1, a2, b2, c2; ^~ main.cpp:101:30: warning: unused variable 'c2' [-Wunused-variable] double a1, b1, c1, a2, b2, c2; ^~ main.cpp:102:41: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d%lf", &t, &n, &bound); ^ main.cpp:104:110: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%lf%lf%lf%lf%lf%lf", &v[i].x[1], &v[i].y[1], &v[i].x[2], &v[i].y[2], &v[i].x[3], &v[i].y[3]); ^